Add Listen section: 5 playable stereo demos (user left / agent right), refreshed sample logs

.gitattributes

@@ -37,3 +37,4 @@ samples/01_igbo_greetings_english.mp3 filter=lfs diff=lfs merge=lfs -text
 samples/03_pidgin_bargein.mp3 filter=lfs diff=lfs merge=lfs -text
 samples/04_hausa_greetings_english.mp3 filter=lfs diff=lfs merge=lfs -text
 samples/05_igbo_heavy.mp3 filter=lfs diff=lfs merge=lfs -text
+samples/02_yoruba_greetings_english.mp3 filter=lfs diff=lfs merge=lfs -text

README.md

@@ -39,6 +39,30 @@ speaker ◄── Dynamic Accent Flash-DPO TTS (chunk streaming, code-switching
 
 **Status: research demo.** Igbo, Yoruba and Hausa beyond greetings and simple phrases are weak (the reply LLM's limit, not the voice's). Read the limitations before using it for anything.
 
+## Listen
+
+Five scripted conversations from the offline driver. **Stereo: the user is on the LEFT channel, the agent on the RIGHT** (headphones help). **User turns are TTS-synthesised** with Dynamic Accent Flash female voices, not real people; the agent speaks with the Flash-DPO male anchor voice. These are **cascaded** demos (ASR → reply LLM → TTS), not a native speech-to-speech model, and the reply LLM is **weak in Igbo, Yoruba and Hausa beyond greetings and short phrases**, which you will hear. Each clip has a JSON log next to it in `samples/` (ASR text, target mix, reply, validator outcome, latency). Audio samples: CC-BY-SA-4.0.
+
+**1. Igbo greeting + English.** Mostly English with an Igbo greeting and closing ("Ndewo!" … "Daalụ!"): planning a day (bank, market, call mum). Includes a long turn with a mid-turn pause and a barge-in ("Wait, sorry, the bank closes early today"). The agent greets back in Igbo ("Ụtụtụ ọma!") and replies in English; its last line contains a garbled name.
+
+<audio controls src="https://huggingface.co/Modularcomputing/dynamic-accent-duplex/resolve/main/samples/01_igbo_greetings_english.mp3"></audio>
+
+**2. Yoruba greeting + English.** "Ẹ káàárọ̀!" then English: buying a phone for a sister on a ₦100k budget, closing with "Ẹ ṣé!". The English replies are fine; the Yoruba the agent adds ("Ọmọ rẹ wà?") is not appropriate here.
+
+<audio controls src="https://huggingface.co/Modularcomputing/dynamic-accent-duplex/resolve/main/samples/02_yoruba_greetings_english.mp3"></audio>
+
+**3. Nigerian Pidgin.** Pidgin throughout ("How far? Abeg, wetin I fit cook tonight…"), with a barge-in ("No be rice o…"). The agent stays in Pidgin the whole way.
+
+<audio controls src="https://huggingface.co/Modularcomputing/dynamic-accent-duplex/resolve/main/samples/03_pidgin_bargein.mp3"></audio>
+
+**4. Hausa greeting + English.** "Sannu, barka da yamma" then English about a trip to Kano and what to pack; Hausa closing "To, na gode". The English advice is fine; the agent's extra Hausa phrases are not real Hausa, and the final Hausa-only turn falls back to "Sorry, I did not catch all of that".
+
+<audio controls src="https://huggingface.co/Modularcomputing/dynamic-accent-duplex/resolve/main/samples/04_hausa_greetings_english.mp3"></audio>
+
+**5. Igbo-heavier.** More Igbo from the user ("Kedu? Biko, nyere m aka" … "Daalụ, ka ọ dị"): booking a taxi to the airport. Shows the weak spot: the agent mostly echoes the user's Igbo phrases rather than writing new Igbo.
+
+<audio controls src="https://huggingface.co/Modularcomputing/dynamic-accent-duplex/resolve/main/samples/05_igbo_heavy.mp3"></audio>
+
 ## Components and licences
 
 | stage | component | licence |
@@ -157,7 +181,7 @@ Barge-in (batch eval, n=40): user speech onset -> agent audio stopped p50 0.235
 
 ## Demos
 
-`samples/` holds four scripted conversations made with the offline driver (agent: Flash-DPO male anchor). **User turns in these samples are TTS-synthesised** (Flash female voices), not real people. Each has a JSON log with the ASR text, the target mix, the reply, the validator outcome and per-stage latency.
+`samples/` holds five scripted conversations (playable in **Listen** above; stereo, user left / agent right) made with the offline driver (agent: Flash-DPO male anchor). **User turns in these samples are TTS-synthesised** (Flash female voices), not real people. Each has a JSON log with the ASR text, the target mix, the reply, the validator outcome and per-stage latency.
 
 ## Limitations (read before use)
 

samples/01_igbo_greetings_english.json

@@ -1,49 +1,54 @@
 {
  "name": "01_igbo_greetings_english",
- "desc": "Mostly English with Igbo greetings/closing (ACE's target case). Includes a long turn (backchannel) and a barge-in. User turns are TTS-synthesized (Flash, female Igbo voice).",
+ "desc": "Mostly English with Igbo greetings/closing. Includes a long turn (backchannel) and a barge-in. User turns are TTS-synthesized (Flash, female Igbo voice).",
  "user_turns": [
   {
-   "label": "TTS-synthesized user turn",
-   "voice": "waxal_ibo_5_female",
-   "text": "<ibo>Ndewo!</ibo> <eng>Good morning. Please, can you help me plan my day? I have a lot to do.</eng>"
+   "label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "text": "<ibo>Ndewo!</ibo> <eng>Good morning. Please, can you help me plan my day? I have a lot to do.</eng>",
+   "wav": "/scratch/duplex_v2/user_audio/01_igbo_greetings_english_turn0.wav",
+   "orig_label": "TTS-synthesized user turn"
   },
   {
-   "label": "TTS-synthesized user turn (long, mid-turn pause)",
-   "voice": "waxal_ibo_5_female",
+   "label": "TTS-synthesized user turn (long, mid-turn pause) [identical input audio recovered from the 2026-10-24 demo]",
    "text_parts": [
     "<eng>I need to go to the bank, and then the market,</eng>",
     "<eng>and in the evening I also want to call my mother.</eng>"
    ],
-   "inner_pause": 0.4
+   "inner_pause": 0.4,
+   "wav": "/scratch/duplex_v2/user_audio/01_igbo_greetings_english_turn1.wav",
+   "text": "<eng>I need to go to the bank, and then the market,</eng> <eng>and in the evening I also want to call my mother.</eng>",
+   "orig_label": "TTS-synthesized user turn (long, mid-turn pause)"
   },
   {
-   "label": "TTS-synthesized user turn (barge-in 1.5 s into the reply)",
-   "voice": "waxal_ibo_5_female",
+   "label": "TTS-synthesized user turn (barge-in 1.5 s into the reply) [identical input audio recovered from the 2026-10-24 demo]",
    "text": "<eng>Wait, sorry, the bank closes early today.</eng>",
-   "barge_at": 1.5
+   "barge_at": 1.5,
+   "wav": "/scratch/duplex_v2/user_audio/01_igbo_greetings_english_turn2.wav",
+   "orig_label": "TTS-synthesized user turn (barge-in 1.5 s into the reply)"
   },
   {
-   "label": "TTS-synthesized user turn",
-   "voice": "waxal_ibo_5_female",
-   "text": "<eng>Okay, thank you so much.</eng> <ibo>Daalụ!</ibo>"
+   "label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "text": "<eng>Okay, thank you so much.</eng> <ibo>Daalụ!</ibo>",
+   "wav": "/scratch/duplex_v2/user_audio/01_igbo_greetings_english_turn3.wav",
+   "orig_label": "TTS-synthesized user turn"
   }
  ],
  "turns": [
   {
    "turn": 0,
-   "user_label": "TTS-synthesized user turn",
+   "user_label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
    "user_ref": "<ibo>Ndewo!</ibo> <eng>Good morning. Please, can you help me plan my day? I have a lot to do.</eng>",
    "user_start": 0.7,
    "user_onset": 0.762,
    "backchannels": [],
-   "asr": "nde wo good morning please can you help me plan my day i have a lot to do",
-   "asr_s": 0.073,
+   "asr": "nde wo good morning please can you help me plan my day i have lot to do",
+   "asr_s": 0.093,
    "eot_wait_s": 0.576,
    "speech_end": 5.984,
    "target": {
     "mix": {
-     "eng": 0.89,
-     "ibo": 0.11
+     "eng": 0.88,
+     "ibo": 0.12
     },
     "matrix": "eng",
     "pattern": [
@@ -52,161 +57,161 @@
     ]
    },
    "target_desc": "Match the user's language mix: English about 90%, Igbo about 10% of the words. The main (matrix) language is English. The user greeted in Igbo: open with a short Igbo greeting.",
-   "reply": "<ibo>Ndewo!</ibo> <eng>Of course! Let’s start with your most urgent tasks. What’s the first thing you need to do today?</eng>",
+   "reply": "<ibo>Ụtụtụ ọma!</ibo> <eng>Of course! Let’s start with your most important tasks first. What’s the top thing you need to do today?</eng>",
    "reply_mix": {
-    "eng": 0.95,
-    "ibo": 0.05
+    "eng": 0.86,
+    "ibo": 0.14
    },
-   "tvd": 0.059,
+   "tvd": 0.023,
    "how": "first_round",
    "first_cand_ok": true,
    "rounds": [
     {
      "round": 0,
-     "llm_s": 0.216,
+     "llm_s": 1.106,
      "cands": [
       {
-       "text": "<ibo>Ndewo!</ibo> <eng>Of course! Let’s start with your most urgent tasks. What’s the first thing you need to do today?</eng>",
+       "text": "<ibo>Ụtụtụ ọma!</ibo> <eng>Of course! Let’s start with your most important tasks first. What’s the top thing you need to do today?</eng>",
        "ok": true,
        "why": [],
-       "tvd": 0.059
+       "tvd": 0.023
       },
       {
-       "text": "<ibo>Ndewo!</ibo> <eng>Sure, I can help. Let’s list your tasks first—what’s the most urgent thing you need to do today?</eng>",
+       "text": "<ibo>Ndewo!</ibo> <eng>Of course! Let’s start with your most urgent tasks. What’s the first thing you need to do today?</eng>",
        "ok": true,
        "why": [],
-       "tvd": 0.059
+       "tvd": 0.069
       },
       {
-       "text": "<ibo>Ndewo!</ibo> <eng>Of course! Let’s start with your most urgent tasks. What’s the first thing you need to do today?</eng>",
+       "text": "<ibo>Ndewo!</ibo> <eng>Of course! Let’s start with your most important tasks first. What’s the top thing you need to do today?</eng>",
        "ok": true,
        "why": [],
-       "tvd": 0.059
+       "tvd": 0.07
       }
      ]
     }
    ],
-   "mix_s": 0.0124,
-   "llm_s": 0.216,
-   "tts_first_s": 0.781,
+   "mix_s": 0.0118,
+   "llm_s": 1.106,
+   "tts_first_s": 1.196,
    "spec_start_s": 0.256,
-   "compute_to_first_audio_s": 1.096,
+   "compute_to_first_audio_s": 2.42,
    "tts_breakdown": {
     "fe": 0.0,
-    "lm": 1.003,
-    "flow_voc": 0.214,
-    "n_tok": 60,
-    "audio_s": 2.4
+    "lm": 1.121,
+    "flow_voc": 0.221,
+    "n_tok": 66,
+    "audio_s": 2.64
    },
    "tts_chunks_s": [
-    0.781,
-    0.69,
-    1.495,
-    1.217
+    1.196,
+    0.707,
+    3.263,
+    1.342
    ],
-   "first_audio": 7.335,
-   "reply_end": 15.295,
-   "latency_s": 1.351
+   "first_audio": 8.661,
+   "reply_end": 18.27,
+   "latency_s": 2.677
   },
   {
    "turn": 1,
-   "user_label": "TTS-synthesized user turn (long, mid-turn pause)",
-   "user_ref": "",
-   "user_start": 15.995,
-   "user_onset": 16.051,
+   "user_label": "TTS-synthesized user turn (long, mid-turn pause) [identical input audio recovered from the 2026-10-24 demo]",
+   "user_ref": "<eng>I need to go to the bank, and then the market,</eng> <eng>and in the evening I also want to call my mother.</eng>",
+   "user_start": 18.97,
+   "user_onset": 19.026,
    "backchannels": [
     {
-     "t": 22.304,
+     "t": 25.28,
      "turn_s": 5.28
     }
    ],
-   "backchannel_at": 22.304,
-   "asr": "i need to go to the bank and then the market and in the evening i also want to call my mother",
-   "asr_s": 0.065,
+   "backchannel_at": 25.28,
+   "asr": "i need to go to the bank and then the market and in the evening i also want o call my mother",
+   "asr_s": 0.093,
    "eot_wait_s": 0.576,
-   "speech_end": 22.016,
+   "speech_end": 24.992,
    "target": {
     "mix": {
-     "eng": 0.97,
-     "ibo": 0.03
+     "eng": 0.96,
+     "ibo": 0.04
     },
     "matrix": "eng",
     "pattern": []
    },
    "target_desc": "Match the user's language mix: English about 95%, Igbo about 5% of the words. The main (matrix) language is English.",
-   "reply": "<eng>Okay, I got you. Start with the bank, then the market, and save calling your mother for evening. Want me to set a reminder?</eng>",
+   "reply": "<eng>Okay, let’s plan that. Go to the bank early, then the market, and call your mother before dinner. Need help with timings?</eng>",
    "reply_mix": {
     "eng": 1.0
    },
-   "tvd": 0.03,
+   "tvd": 0.04,
    "how": "first_round",
    "first_cand_ok": true,
    "rounds": [
     {
      "round": 0,
-     "llm_s": 0.257,
+     "llm_s": 0.293,
      "cands": [
       {
-       "text": "<eng>Okay, I’ll help you plan. Start with the bank—go early to avoid queues. Then the market. Call your mother after dinner, when you’re relaxed.</eng> <ibo>Ọ dị mma.</ibo>",
+       "text": "<eng>Okay, let’s plan that. Go to the bank early, then the market, and call your mother before dinner. Need help with timings?</eng>",
        "ok": true,
        "why": [],
-       "tvd": 0.081
+       "tvd": 0.04
       },
       {
-       "text": "<eng>Okay, I got you. Start with the bank, then the market, and save calling your mother for evening. Want me to set a reminder?</eng>",
+       "text": "<eng>Okay, let’s plan that. Go to the bank early, then the market, and call your mum after dinner. Should I set a reminder?</eng> <ibo>Ọ dị mma</ibo>",
        "ok": true,
        "why": [],
-       "tvd": 0.03
+       "tvd": 0.078
       },
       {
-       "text": "<eng>Okay, let’s plan that. Go to the bank first, then the market, and call your mum in the evening. Need a reminder for the call?</eng>",
+       "text": "<eng>Got it. Go to the bank early, then the market, and call your mother after dinner. Should I set a reminder?</eng> <ibo>Ọ dị mma</ibo>",
        "ok": true,
        "why": [],
-       "tvd": 0.03
+       "tvd": 0.083
       }
      ]
     }
    ],
-   "mix_s": 0.0158,
-   "llm_s": 0.257,
-   "tts_first_s": 0.976,
+   "mix_s": 0.0157,
+   "llm_s": 0.293,
+   "tts_first_s": 0.963,
    "spec_start_s": 0.256,
-   "compute_to_first_audio_s": 1.333,
+   "compute_to_first_audio_s": 1.383,
    "tts_breakdown": {
     "fe": 0.0,
-    "lm": 0.966,
-    "flow_voc": 0.217,
-    "n_tok": 58,
-    "audio_s": 2.32
+    "lm": 0.801,
+    "flow_voc": 0.223,
+    "n_tok": 50,
+    "audio_s": 2.0
    },
    "tts_chunks_s": [
-    0.976,
-    2.443,
-    1.183
+    0.963,
+    4.284,
+    1.024
    ],
-   "first_audio": 23.605,
-   "reply_end": 33.528,
-   "latency_s": 1.589
+   "first_audio": 26.631,
+   "reply_end": 37.835,
+   "latency_s": 1.639
   },
   {
    "turn": 2,
-   "user_label": "TTS-synthesized user turn (barge-in 1.5 s into the reply)",
+   "user_label": "TTS-synthesized user turn (barge-in 1.5 s into the reply) [identical input audio recovered from the 2026-10-24 demo]",
    "user_ref": "<eng>Wait, sorry, the bank closes early today.</eng>",
-   "user_start": 25.105,
-   "user_onset": 25.174,
+   "user_start": 28.131,
+   "user_onset": 28.2,
    "backchannels": [],
    "barge": {
-    "user_onset": 25.174,
-    "detected": 25.376,
-    "agent_stopped": 25.416,
-    "reaction_s": 0.242,
+    "user_onset": 28.2,
+    "detected": 28.384,
+    "agent_stopped": 28.424,
+    "reaction_s": 0.224,
     "agent_chunks_played": 1,
     "agent_chunks_total": 3
    },
-   "asr": "wait sorry the bank closes ale today",
-   "asr_s": 0.057,
+   "asr": "wait sorry the band closes early today",
+   "asr_s": 0.074,
    "eot_wait_s": 0.576,
-   "speech_end": 27.488,
+   "speech_end": 30.528,
    "target": {
     "mix": {
      "eng": 0.98
@@ -215,7 +220,7 @@
     "pattern": []
    },
    "target_desc": "Match the user's language mix: English about 100% of the words. The main (matrix) language is English. Reply only in English.",
-   "reply": "<eng>Okay, no problem. Let’s plan for tomorrow instead. Should we adjust your market visit or call time?</eng>",
+   "reply": "<eng>Okay, no problem. Let’s adjust—go to the market first, then call your mum before the bank closes.</eng>",
    "reply_mix": {
     "eng": 1.0
    },
@@ -225,22 +230,22 @@
    "rounds": [
     {
      "round": 0,
-     "llm_s": 0.246,
+     "llm_s": 0.208,
      "cands": [
       {
-       "text": "<eng>Okay, no problem. Let’s plan for tomorrow instead. Should we adjust your market visit or call time?</eng>",
+       "text": "<eng>Okay, no problem. Let’s adjust—go to the market first, then call your mum before the bank closes.</eng>",
        "ok": true,
        "why": [],
        "tvd": 0.01
       },
       {
-       "text": "<eng>Okay, no problem. Let’s adjust—go to the market first, then call your mum in the evening. Want me to set a reminder?</eng>",
+       "text": "<eng>Okay, no problem. Let’s shift the bank visit to morning, then market, and call your mum after dinner.</eng>",
        "ok": true,
        "why": [],
        "tvd": 0.01
       },
       {
-       "text": "<eng>Oh no worries—let’s adjust. We can go to the market first, then call your mum, and the bank can wait till tomorrow.</eng>",
+       "text": "<eng>Okay, no problem. Let’s shift the bank trip to earlier today. What time can you make it before it closes?</eng>",
        "ok": true,
        "why": [],
        "tvd": 0.01
@@ -248,107 +253,96 @@
      ]
     }
    ],
-   "mix_s": 0.0055,
-   "llm_s": 0.246,
-   "tts_first_s": 0.891,
+   "mix_s": 0.0049,
+   "llm_s": 0.208,
+   "tts_first_s": 0.908,
    "spec_start_s": 0.256,
-   "compute_to_first_audio_s": 1.214,
+   "compute_to_first_audio_s": 1.209,
    "tts_breakdown": {
     "fe": 0.0,
-    "lm": 1.424,
-    "flow_voc": 0.221,
-    "n_tok": 85,
-    "audio_s": 3.4
+    "lm": 2.513,
+    "flow_voc": 0.285,
+    "n_tok": 130,
+    "audio_s": 5.2
    },
    "tts_chunks_s": [
-    0.891,
-    1.124,
-    1.645
+    0.908,
+    2.798
    ],
-   "first_audio": 28.958,
-   "reply_end": 36.358,
-   "latency_s": 1.47
+   "first_audio": 31.993,
+   "reply_end": 39.991,
+   "latency_s": 1.465
   },
   {
    "turn": 3,
-   "user_label": "TTS-synthesized user turn",
+   "user_label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
    "user_ref": "<eng>Okay, thank you so much.</eng> <ibo>Daalụ!</ibo>",
-   "user_start": 37.058,
-   "user_onset": 37.119,
+   "user_start": 40.691,
+   "user_onset": 40.753,
    "backchannels": [],
-   "asr": "okay thank you somuch daalo",
-   "asr_s": 0.056,
+   "asr": "ok thank you so much talo",
+   "asr_s": 0.05,
    "eot_wait_s": 0.576,
-   "speech_end": 39.488,
+   "speech_end": 43.104,
    "target": {
     "mix": {
-     "eng": 0.79,
-     "ibo": 0.2
+     "eng": 0.99
     },
     "matrix": "eng",
-    "pattern": [
-     "closing:ibo",
-     "inter-sentential"
-    ]
+    "pattern": []
    },
-   "target_desc": "Match the user's language mix: English about 80%, Igbo about 20% of the words. The main (matrix) language is English. The user closed in Igbo: you may close in Igbo.",
-   "reply": "<eng>My pleasure!</eng> <ibo>Daalụ!</ibo>",
+   "target_desc": "Match the user's language mix: English about 100% of the words. The main (matrix) language is English. Reply only in English.",
+   "reply": "<eng>You're very welcome, Talos!</eng>",
    "reply_mix": {
-    "eng": 0.67,
-    "ibo": 0.33
+    "eng": 1.0
    },
-   "tvd": 0.127,
+   "tvd": 0.005,
    "how": "first_round",
    "first_cand_ok": true,
    "rounds": [
     {
      "round": 0,
-     "llm_s": 0.177,
+     "llm_s": 0.17,
      "cands": [
       {
-       "text": "<eng>My pleasure!</eng> <ibo>Daalụ!</ibo>",
+       "text": "<eng>You're very welcome, Talos!</eng>",
        "ok": true,
        "why": [],
-       "tvd": 0.127
+       "tvd": 0.005
       },
       {
-       "text": "<eng>Anytime, no wahala.</eng> <ibo>Daalụ ọma!</ibo>",
-       "ok": false,
-       "why": [
-        "mix drift tvd=0.49"
-       ],
-       "tvd": 0.495
+       "text": "<eng>You’re welcome, Talu! Have a great day—stay calm and organized.</eng>",
+       "ok": true,
+       "why": [],
+       "tvd": 0.005
       },
       {
-       "text": "<eng>Anytime, no wahala.</eng> <ibo>Daalụ!</ibo>",
-       "ok": false,
-       "why": [
-        "mix drift tvd=0.42"
-       ],
-       "tvd": 0.42
+       "text": "<eng>You’re welcome, Tallo! Have a great day.</eng>",
+       "ok": true,
+       "why": [],
+       "tvd": 0.005
       }
      ]
     }
    ],
    "mix_s": 0.0042,
-   "llm_s": 0.177,
-   "tts_first_s": 0.758,
+   "llm_s": 0.17,
+   "tts_first_s": 1.361,
    "spec_start_s": 0.256,
-   "compute_to_first_audio_s": 1.002,
+   "compute_to_first_audio_s": 1.593,
    "tts_breakdown": {
     "fe": 0.0,
-    "lm": 0.46,
-    "flow_voc": 0.203,
-    "n_tok": 30,
-    "audio_s": 1.2
+    "lm": 1.138,
+    "flow_voc": 0.223,
+    "n_tok": 67,
+    "audio_s": 2.68
    },
    "tts_chunks_s": [
-    0.758,
-    0.662
+    1.361
    ],
-   "first_audio": 40.746,
-   "reply_end": 43.346,
-   "latency_s": 1.258
+   "first_audio": 44.953,
+   "reply_end": 47.633,
+   "latency_s": 1.849
   }
  ]
 }

samples/01_igbo_greetings_english.mp3

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:18f762b80bc3ab09b920201869b0a8c4070a80cb6323ad2d1be38b92ce03d9f4
-size 704684
+oid sha256:2ba5c48e1cabad48537b1121aa661e8c577edcab6b4c88c2c96d0b97099a43bc
+size 579788

samples/02_yoruba_greetings_english.json

@@ -0,0 +1,251 @@
+{
+ "name": "02_yoruba_greetings_english",
+ "desc": "Yoruba greetings + English. User turns TTS-synthesized (Flash, female Yoruba voice).",
+ "user_turns": [
+  {
+   "label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "text": "<yor>Ẹ káàárọ̀!</yor> <eng>I want to buy a new phone for my sister.</eng>",
+   "wav": "/scratch/duplex_v2/user_audio/02_yoruba_greetings_english_turn0.wav",
+   "orig_label": "TTS-synthesized user turn"
+  },
+  {
+   "label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "text": "<eng>Her budget is about one hundred thousand naira.</eng>",
+   "wav": "/scratch/duplex_v2/user_audio/02_yoruba_greetings_english_turn1.wav",
+   "orig_label": "TTS-synthesized user turn"
+  },
+  {
+   "label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "text": "<eng>Okay, that sounds good.</eng> <yor>Ẹ ṣé!</yor>",
+   "wav": "/scratch/duplex_v2/user_audio/02_yoruba_greetings_english_turn2.wav",
+   "orig_label": "TTS-synthesized user turn"
+  }
+ ],
+ "turns": [
+  {
+   "turn": 0,
+   "user_label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "user_ref": "<yor>Ẹ káàárọ̀!</yor> <eng>I want to buy a new phone for my sister.</eng>",
+   "user_start": 0.7,
+   "user_onset": 0.715,
+   "backchannels": [],
+   "asr": "ẹka arọ i want to buy any phone for my sisters",
+   "asr_s": 0.079,
+   "eot_wait_s": 0.576,
+   "speech_end": 4.096,
+   "target": {
+    "mix": {
+     "eng": 0.82,
+     "yor": 0.18
+    },
+    "matrix": "eng",
+    "pattern": [
+     "inter-sentential"
+    ]
+   },
+   "target_desc": "Match the user's language mix: English about 80%, Yoruba about 20% of the words. The main (matrix) language is English.",
+   "reply": "<eng>Okay, I hear you. What kind of phone are you thinking for your sisters?</eng> <yor>Ọmọ rẹ wà?</yor>",
+   "reply_mix": {
+    "eng": 0.82,
+    "yor": 0.18
+   },
+   "tvd": 0.002,
+   "how": "first_round",
+   "first_cand_ok": true,
+   "rounds": [
+    {
+     "round": 0,
+     "llm_s": 0.851,
+     "cands": [
+      {
+       "text": "<eng>Okay, I understand. What kind of phone are you looking for—new or used?</eng> <yor>Àwọn àwọn àwọn àwọn?</yor>",
+       "ok": true,
+       "why": [],
+       "tvd": 0.048
+      },
+      {
+       "text": "<eng>Okay, I hear you. What kind of phone are you thinking for your sisters?</eng> <yor>Ọmọ rẹ wà?</yor>",
+       "ok": true,
+       "why": [],
+       "tvd": 0.002
+      },
+      {
+       "text": "<eng>Ẹ káàárọ̀! What kind of phone are you looking for—brand, price, or features?</eng> <yor>Ẹ káàárọ̀!</yor>",
+       "ok": true,
+       "why": [],
+       "tvd": 0.012
+      }
+     ]
+    }
+   ],
+   "mix_s": 0.0076,
+   "llm_s": 0.851,
+   "tts_first_s": 1.032,
+   "spec_start_s": 0.256,
+   "compute_to_first_audio_s": 1.984,
+   "tts_breakdown": {
+    "fe": 0.0,
+    "lm": 0.616,
+    "flow_voc": 0.22,
+    "n_tok": 39,
+    "audio_s": 1.56
+   },
+   "tts_chunks_s": [
+    1.032,
+    1.483,
+    0.836
+   ],
+   "first_audio": 6.335,
+   "reply_end": 12.895,
+   "latency_s": 2.239
+  },
+  {
+   "turn": 1,
+   "user_label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "user_ref": "<eng>Her budget is about one hundred thousand naira.</eng>",
+   "user_start": 13.595,
+   "user_onset": 13.83,
+   "backchannels": [],
+   "asr": "her budget is about 100 000 naira",
+   "asr_s": 0.066,
+   "eot_wait_s": 0.576,
+   "speech_end": 16.736,
+   "target": {
+    "mix": {
+     "eng": 0.95,
+     "yor": 0.05
+    },
+    "matrix": "eng",
+    "pattern": []
+   },
+   "target_desc": "Match the user's language mix: English about 95%, Yoruba about 5% of the words. The main (matrix) language is English.",
+   "reply": "<eng>Okay, with one hundred thousand naira, we can find a good smartphone for her. Any preferred brand?</eng> <yor>Ọmọ rẹ wà?</yor>",
+   "reply_mix": {
+    "eng": 0.85,
+    "yor": 0.15
+   },
+   "tvd": 0.1,
+   "how": "first_round",
+   "first_cand_ok": true,
+   "rounds": [
+    {
+     "round": 0,
+     "llm_s": 0.345,
+     "cands": [
+      {
+       "text": "<eng>Okay, with one hundred thousand naira, we can find a good smartphone for her. Any preferred brand?</eng> <yor>Ọmọ rẹ wà?</yor>",
+       "ok": true,
+       "why": [],
+       "tvd": 0.1
+      },
+      {
+       "text": "<eng>Okay, with one hundred thousand naira, we can find a good phone for her. Any brand preference?</eng> <yor>Ọmọ rẹ wà?</yor>",
+       "ok": true,
+       "why": [],
+       "tvd": 0.1
+      },
+      {
+       "text": "<eng>Okay, with a budget of one hundred thousand naira, I can suggest a few good phones. Do you want something with a good camera?</eng> <yor>Àwọn àkẹ́kẹ́ ní àwọn àwọn?</yor>",
+       "ok": true,
+       "why": [],
+       "tvd": 0.121
+      }
+     ]
+    }
+   ],
+   "mix_s": 0.0038,
+   "llm_s": 0.345,
+   "tts_first_s": 0.59,
+   "spec_start_s": 0.256,
+   "compute_to_first_audio_s": 1.021,
+   "tts_breakdown": {
+    "fe": 0.0,
+    "lm": 0.53,
+    "flow_voc": 0.221,
+    "n_tok": 34,
+    "audio_s": 1.36
+   },
+   "tts_chunks_s": [
+    0.59,
+    2.303,
+    1.014,
+    0.751
+   ],
+   "first_audio": 18.013,
+   "reply_end": 28.357,
+   "latency_s": 1.277
+  },
+  {
+   "turn": 2,
+   "user_label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "user_ref": "<eng>Okay, that sounds good.</eng> <yor>Ẹ ṣé!</yor>",
+   "user_start": 29.057,
+   "user_onset": 29.312,
+   "backchannels": [],
+   "asr": "oka that sounds good she",
+   "asr_s": 0.077,
+   "eot_wait_s": 0.576,
+   "speech_end": 31.808,
+   "target": {
+    "mix": {
+     "eng": 0.97
+    },
+    "matrix": "eng",
+    "pattern": []
+   },
+   "target_desc": "Match the user's language mix: English about 95% of the words. The main (matrix) language is English. Reply only in English.",
+   "reply": "<eng>Okay, that sounds good. She has a favorite brand in mind?</eng>",
+   "reply_mix": {
+    "eng": 1.0
+   },
+   "tvd": 0.015,
+   "how": "first_round",
+   "first_cand_ok": true,
+   "rounds": [
+    {
+     "round": 0,
+     "llm_s": 0.207,
+     "cands": [
+      {
+       "text": "<eng>Okay, that sounds good. She has a favorite brand in mind?</eng>",
+       "ok": true,
+       "why": [],
+       "tvd": 0.015
+      },
+      {
+       "text": "<eng>Okay, that sounds good. She likes any particular brand like Samsung, iPhone, or Tecno?</eng>",
+       "ok": true,
+       "why": [],
+       "tvd": 0.015
+      },
+      {
+       "text": "<eng>Great! She’ll love it. Should we look for a phone with a good camera or long battery life?</eng>",
+       "ok": true,
+       "why": [],
+       "tvd": 0.015
+      }
+     ]
+    }
+   ],
+   "mix_s": 0.0034,
+   "llm_s": 0.207,
+   "tts_first_s": 1.217,
+   "spec_start_s": 0.256,
+   "compute_to_first_audio_s": 1.515,
+   "tts_breakdown": {
+    "fe": 0.0,
+    "lm": 0.887,
+    "flow_voc": 0.221,
+    "n_tok": 55,
+    "audio_s": 2.2
+   },
+   "tts_chunks_s": [
+    1.217,
+    1.109
+   ],
+   "first_audio": 33.579,
+   "reply_end": 38.219,
+   "latency_s": 1.771
+  }
+ ]
+}

samples/02_yoruba_greetings_english.mp3

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c7172c7ba7a76c68e8d453f335ff3d474dc4a21f727829d4d3beff33fd41fb03
+size 466892

samples/03_pidgin_bargein.json

@@ -3,32 +3,35 @@
  "desc": "Nigerian Pidgin throughout, with a barge-in. User turns TTS-synthesized (Flash, female voice).",
  "user_turns": [
   {
-   "label": "TTS-synthesized user turn",
-   "voice": "waxal_yor_5_female",
-   "text": "<pcm>How far? Abeg, wetin I fit cook tonight wey no go take long?</pcm>"
+   "label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "text": "<pcm>How far? Abeg, wetin I fit cook tonight wey no go take long?</pcm>",
+   "wav": "/scratch/duplex_v2/user_audio/03_pidgin_bargein_turn0.wav",
+   "orig_label": "TTS-synthesized user turn"
   },
   {
-   "label": "TTS-synthesized user turn (barge-in 1.2 s into the reply)",
-   "voice": "waxal_yor_5_female",
+   "label": "TTS-synthesized user turn (barge-in 1.2 s into the reply) [identical input audio recovered from the 2026-10-24 demo]",
    "text": "<pcm>No be rice o, I no get rice for house.</pcm>",
-   "barge_at": 1.2
+   "barge_at": 1.2,
+   "wav": "/scratch/duplex_v2/user_audio/03_pidgin_bargein_turn1.wav",
+   "orig_label": "TTS-synthesized user turn (barge-in 1.2 s into the reply)"
   },
   {
-   "label": "TTS-synthesized user turn",
-   "voice": "waxal_yor_5_female",
-   "text": "<pcm>Okay, na so. Thank you well well.</pcm>"
+   "label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "text": "<pcm>Okay, na so. Thank you well well.</pcm>",
+   "wav": "/scratch/duplex_v2/user_audio/03_pidgin_bargein_turn2.wav",
+   "orig_label": "TTS-synthesized user turn"
   }
  ],
  "turns": [
   {
    "turn": 0,
-   "user_label": "TTS-synthesized user turn",
+   "user_label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
    "user_ref": "<pcm>How far? Abeg, wetin I fit cook tonight wey no go take long?</pcm>",
    "user_start": 0.7,
    "user_onset": 0.764,
    "backchannels": [],
-   "asr": "how far i beg waiting i fik cook tonight when wou go take long",
-   "asr_s": 0.069,
+   "asr": "how far i beg wetin i fit cook tonight when no go take long",
+   "asr_s": 0.086,
    "eot_wait_s": 0.576,
    "speech_end": 4.768,
    "target": {
@@ -41,7 +44,7 @@
     ]
    },
    "target_desc": "Match the user's language mix: Nigerian Pidgin about 100% of the words. The main (matrix) language is Nigerian Pidgin. The user greeted in Nigerian Pidgin: open with a short Nigerian Pidgin greeting. Reply only in Nigerian Pidgin.",
-   "reply": "<pcm>How far? Abeg, jollof rice with pepper soup no go take long, only twenty minutes. You fit start now?</pcm>",
+   "reply": "<pcm>How far! You fit cook moi moi or amala with egusi soup, e no go pass twenty minutes. You dey need pepper?</pcm>",
    "reply_mix": {
     "pcm": 1.0
    },
@@ -51,22 +54,22 @@
    "rounds": [
     {
      "round": 0,
-     "llm_s": 0.23,
+     "llm_s": 0.232,
      "cands": [
       {
-       "text": "<pcm>How far? Abeg, jollof rice with pepper soup no go take long, only twenty minutes. You fit start now?</pcm>",
+       "text": "<pcm>How far! You fit cook moi moi or amala with egusi soup, e no go pass twenty minutes. You dey need pepper?</pcm>",
        "ok": true,
        "why": [],
        "tvd": 0.0
       },
       {
-       "text": "<pcm>How far! Abeg, jollof rice with beans no go take more than thirty minutes. You fit start now?</pcm>",
+       "text": "<pcm>How far! You fit cook efo riro with pepper soup, e no go take long. You get pepper for that?</pcm>",
        "ok": true,
        "why": [],
        "tvd": 0.0
       },
       {
-       "text": "<pcm>How far! Abeg, jollof rice with chicken no go take long, less than thirty minutes. You fit start now?</pcm>",
+       "text": "<pcm>How far! You fit cook pepper soup with garri, e no go pass twenty minutes. You get pepper for that?</pcm>",
        "ok": true,
        "why": [],
        "tvd": 0.0
@@ -74,57 +77,55 @@
      ]
     }
    ],
-   "mix_s": 0.0106,
-   "llm_s": 0.23,
-   "tts_first_s": 0.795,
+   "mix_s": 0.0099,
+   "llm_s": 0.232,
+   "tts_first_s": 0.662,
    "spec_start_s": 0.256,
-   "compute_to_first_audio_s": 1.119,
+   "compute_to_first_audio_s": 1.003,
    "tts_breakdown": {
     "fe": 0.0,
-    "lm": 0.592,
-    "flow_voc": 0.216,
-    "n_tok": 38,
-    "audio_s": 1.52
+    "lm": 0.516,
+    "flow_voc": 0.22,
+    "n_tok": 33,
+    "audio_s": 1.32
    },
    "tts_chunks_s": [
-    0.795,
-    2.575,
-    0.808
+    0.662,
+    5.019,
+    0.736
    ],
-   "first_audio": 6.143,
-   "reply_end": 15.678,
-   "latency_s": 1.375
+   "first_audio": 6.027,
+   "reply_end": 19.286,
+   "latency_s": 1.259
   },
   {
    "turn": 1,
-   "user_label": "TTS-synthesized user turn (barge-in 1.2 s into the reply)",
+   "user_label": "TTS-synthesized user turn (barge-in 1.2 s into the reply) [identical input audio recovered from the 2026-10-24 demo]",
    "user_ref": "<pcm>No be rice o, I no get rice for house.</pcm>",
-   "user_start": 7.343,
-   "user_onset": 7.609,
+   "user_start": 7.227,
+   "user_onset": 7.493,
    "backchannels": [],
    "barge": {
-    "user_onset": 7.609,
-    "detected": 7.808,
-    "agent_stopped": 7.848,
-    "reaction_s": 0.239,
+    "user_onset": 7.493,
+    "detected": 7.712,
+    "agent_stopped": 7.752,
+    "reaction_s": 0.259,
     "agent_chunks_played": 1,
     "agent_chunks_total": 3
    },
-   "asr": "no be rice o i no get rice for huse",
-   "asr_s": 0.062,
+   "asr": "no be rice oh i no get rice for house",
+   "asr_s": 0.082,
    "eot_wait_s": 0.576,
-   "speech_end": 11.2,
+   "speech_end": 11.072,
    "target": {
     "mix": {
      "pcm": 1.0
     },
     "matrix": "pcm",
-    "pattern": [
-     "discourse:pcm"
-    ]
+    "pattern": []
    },
-   "target_desc": "Match the user's language mix: Nigerian Pidgin about 100% of the words. The main (matrix) language is Nigerian Pidgin. Sprinkle a Nigerian Pidgin discourse word or two the way the user did. Reply only in Nigerian Pidgin.",
-   "reply": "<pcm>No wahala, I dey get rice for house. You fit cook e now, no go take long.</pcm>",
+   "target_desc": "Match the user's language mix: Nigerian Pidgin about 100% of the words. The main (matrix) language is Nigerian Pidgin. Reply only in Nigerian Pidgin.",
+   "reply": "<pcm>Abeg, no worry! You fit cook beans with pepper soup—no rice, no problem. Wetin you fit use?</pcm>",
    "reply_mix": {
     "pcm": 1.0
    },
@@ -134,22 +135,22 @@
    "rounds": [
     {
      "round": 0,
-     "llm_s": 0.214,
+     "llm_s": 0.221,
      "cands": [
       {
-       "text": "<pcm>No wahala, I dey get rice for house. You fit cook e now, no go take long.</pcm>",
+       "text": "<pcm>Abeg, no worry! You fit cook beans with pepper soup—no rice, no problem. Wetin you fit use?</pcm>",
        "ok": true,
        "why": [],
        "tvd": 0.0
       },
       {
-       "text": "<pcm>No wahala, I dey get rice for house. You just tell me wetin you fit cook, I go help you quick.</pcm>",
+       "text": "<pcm>Abeg, no worry! You fit make garri and beans with pepper soup—no go take more than twenty minutes.</pcm>",
        "ok": true,
        "why": [],
        "tvd": 0.0
       },
       {
-       "text": "<pcm>No wahala, I dey get rice for house. You fit cook e now, no go take long.</pcm>",
+       "text": "<pcm>No wahala, you fit cook garri with beans, e no go take long and no need rice.</pcm>",
        "ok": true,
        "why": [],
        "tvd": 0.0
@@ -157,38 +158,38 @@
      ]
     }
    ],
-   "mix_s": 0.0084,
-   "llm_s": 0.214,
-   "tts_first_s": 0.784,
+   "mix_s": 0.0069,
+   "llm_s": 0.221,
+   "tts_first_s": 1.206,
    "spec_start_s": 0.256,
-   "compute_to_first_audio_s": 1.081,
+   "compute_to_first_audio_s": 1.528,
    "tts_breakdown": {
     "fe": 0.0,
-    "lm": 1.385,
-    "flow_voc": 0.208,
-    "n_tok": 85,
-    "audio_s": 3.4
+    "lm": 0.755,
+    "flow_voc": 0.223,
+    "n_tok": 47,
+    "audio_s": 1.88
    },
    "tts_chunks_s": [
-    0.784,
-    1.183,
-    1.594
+    1.206,
+    2.214,
+    0.978
    ],
-   "first_audio": 12.538,
-   "reply_end": 19.738,
-   "latency_s": 1.338
+   "first_audio": 12.856,
+   "reply_end": 21.776,
+   "latency_s": 1.784
   },
   {
    "turn": 2,
-   "user_label": "TTS-synthesized user turn",
+   "user_label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
    "user_ref": "<pcm>Okay, na so. Thank you well well.</pcm>",
-   "user_start": 20.438,
-   "user_onset": 20.708,
+   "user_start": 22.476,
+   "user_onset": 22.746,
    "backchannels": [],
-   "asr": "ok na so thank you wew",
-   "asr_s": 0.049,
+   "asr": "oka na so thank you gbee well",
+   "asr_s": 0.065,
    "eot_wait_s": 0.576,
-   "speech_end": 24.448,
+   "speech_end": 26.464,
    "target": {
     "mix": {
      "pcm": 1.0
@@ -199,7 +200,7 @@
     ]
    },
    "target_desc": "Match the user's language mix: Nigerian Pidgin about 100% of the words. The main (matrix) language is Nigerian Pidgin. Sprinkle a Nigerian Pidgin discourse word or two the way the user did. Reply only in Nigerian Pidgin.",
-   "reply": "<pcm>Ok na so, thank you well well. We go see later, no get problem.</pcm>",
+   "reply": "<pcm>Na so, thank you well well! I dey glad I fit help. We go see later, no wahala.</pcm>",
    "reply_mix": {
     "pcm": 1.0
    },
@@ -209,22 +210,22 @@
    "rounds": [
     {
      "round": 0,
-     "llm_s": 0.185,
+     "llm_s": 0.204,
      "cands": [
       {
-       "text": "<pcm>Ok na so, thank you well well. We go see later, no get problem.</pcm>",
+       "text": "<pcm>Na so, thank you well well! I dey glad I fit help. We go see later, no wahala.</pcm>",
        "ok": true,
        "why": [],
        "tvd": 0.0
       },
       {
-       "text": "<pcm>Ok na so, thank you well well. We go see later, no wahala.</pcm>",
+       "text": "<pcm>Na so! Thank you well well. We go see later, no wahala.</pcm>",
        "ok": true,
        "why": [],
        "tvd": 0.0
       },
       {
-       "text": "<pcm>Ok na so, thank you well well. We go see later, no wahala.</pcm>",
+       "text": "<pcm>Na so! Thank you well well, my friend. We go see later, no wahala.</pcm>",
        "ok": true,
        "why": [],
        "tvd": 0.0
@@ -233,25 +234,25 @@
     }
    ],
    "mix_s": 0.0048,
-   "llm_s": 0.185,
-   "tts_first_s": 0.75,
+   "llm_s": 0.204,
+   "tts_first_s": 1.289,
    "spec_start_s": 0.256,
-   "compute_to_first_audio_s": 1.001,
+   "compute_to_first_audio_s": 1.576,
    "tts_breakdown": {
     "fe": 0.0,
-    "lm": 1.034,
-    "flow_voc": 0.219,
-    "n_tok": 64,
-    "audio_s": 2.56
+    "lm": 1.203,
+    "flow_voc": 0.222,
+    "n_tok": 73,
+    "audio_s": 2.92
    },
    "tts_chunks_s": [
-    0.75,
-    1.156,
-    1.253
+    1.289,
+    0.964,
+    1.425
    ],
-   "first_audio": 25.704,
-   "reply_end": 32.024,
-   "latency_s": 1.256
+   "first_audio": 28.296,
+   "reply_end": 35.696,
+   "latency_s": 1.832
   }
  ]
 }

samples/03_pidgin_bargein.mp3

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:2a6c93794a299b388091c0ece2178232ba01088f499628f2b34cc259edfdb94d
-size 523436
+oid sha256:6a7fe416706e523eb6762a6b41fbc7717368f0844e21a8c75d8a2bb2e040005c
+size 436652

samples/04_hausa_greetings_english.json

@@ -3,31 +3,34 @@
  "desc": "Hausa greeting + English, Hausa closing. User turns TTS-synthesized (Flash, female voice).",
  "user_turns": [
   {
-   "label": "TTS-synthesized user turn",
-   "voice": "waxal_ibo_5_female",
-   "text": "<hau>Sannu, barka da yamma.</hau> <eng>I am travelling to Kano tomorrow.</eng>"
+   "label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "text": "<hau>Sannu, barka da yamma.</hau> <eng>I am travelling to Kano tomorrow.</eng>",
+   "wav": "/scratch/duplex_v2/user_audio/04_hausa_greetings_english_turn0.wav",
+   "orig_label": "TTS-synthesized user turn"
   },
   {
-   "label": "TTS-synthesized user turn",
-   "voice": "waxal_ibo_5_female",
-   "text": "<eng>What should I pack for the weather there?</eng>"
+   "label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "text": "<eng>What should I pack for the weather there?</eng>",
+   "wav": "/scratch/duplex_v2/user_audio/04_hausa_greetings_english_turn1.wav",
+   "orig_label": "TTS-synthesized user turn"
   },
   {
-   "label": "TTS-synthesized user turn",
-   "voice": "waxal_ibo_5_female",
-   "text": "<hau>To, na gode.</hau>"
+   "label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "text": "<hau>To, na gode.</hau>",
+   "wav": "/scratch/duplex_v2/user_audio/04_hausa_greetings_english_turn2.wav",
+   "orig_label": "TTS-synthesized user turn"
   }
  ],
  "turns": [
   {
    "turn": 0,
-   "user_label": "TTS-synthesized user turn",
+   "user_label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
    "user_ref": "<hau>Sannu, barka da yamma.</hau> <eng>I am travelling to Kano tomorrow.</eng>",
    "user_start": 0.7,
-   "user_onset": 0.769,
+   "user_onset": 0.77,
    "backchannels": [],
-   "asr": "sannu baka da yamma i am travelling to cano tomorrow",
-   "asr_s": 0.058,
+   "asr": "sannu baka da yamma i am travelling to kano tomorrow",
+   "asr_s": 0.088,
    "eot_wait_s": 0.576,
    "speech_end": 5.248,
    "target": {
@@ -43,75 +46,73 @@
     ]
    },
    "target_desc": "Match the user's language mix: English about 60%, Hausa about 40% of the words. The main (matrix) language is English. The user greeted in Hausa: open with a short Hausa greeting. Sprinkle a Hausa discourse word or two the way the user did.",
-   "reply": "<hau>Sannu!</hau> <eng>Good evening, I hear you're travelling to Kano tomorrow. Is it for business or family?</eng> <hau>Ba mu aji kama?</hau>",
+   "reply": "<hau>Sannu!</hau> <eng>Good evening, I hear you’re travelling to Kano tomorrow. Is it for business or pleasure?</eng> <hau>Ba a da kai yin?</hau>",
    "reply_mix": {
-    "eng": 0.75,
-    "hau": 0.25
+    "eng": 0.74,
+    "hau": 0.26
    },
-   "tvd": 0.15,
+   "tvd": 0.137,
    "how": "first_round",
    "first_cand_ok": true,
    "rounds": [
     {
      "round": 0,
-     "llm_s": 0.298,
+     "llm_s": 0.301,
      "cands": [
       {
-       "text": "<hau>Sannu!</hau> <eng>Good evening, I hear you're travelling to Kano tomorrow. Is it for business or family?</eng> <hau>Ba mu aji kama?</hau>",
+       "text": "<hau>Sannu baka da yamma!</hau> <eng>Traveling to Kano tomorrow, eh? You need help with your flight or hotel booking?</eng>",
        "ok": true,
        "why": [],
-       "tvd": 0.15
+       "tvd": 0.179
       },
       {
-       "text": "<hau>Sannu!</hau> <eng>Good evening. I see you’re travelling to Kano tomorrow. Is it for business or pleasure?</eng>",
-       "ok": false,
-       "why": [
-        "mix drift tvd=0.31"
-       ],
-       "tvd": 0.309
+       "text": "<hau>Sannu!</hau> <eng>Good evening, I hear you're heading to Kano tomorrow. Any special reason for the trip?</eng> <hau>Baka da yamma</hau>",
+       "ok": true,
+       "why": [],
+       "tvd": 0.19
       },
       {
-       "text": "<hau>Sannu baka da yamma!</hau> <eng>That’s good to hear. Are you sure you’ve packed everything for your trip to Kano?</eng>",
+       "text": "<hau>Sannu!</hau> <eng>Good evening, I hear you’re travelling to Kano tomorrow. Is it for business or pleasure?</eng> <hau>Ba a da kai yin?</hau>",
        "ok": true,
        "why": [],
-       "tvd": 0.19
+       "tvd": 0.137
       }
      ]
     }
    ],
-   "mix_s": 0.0077,
-   "llm_s": 0.298,
-   "tts_first_s": 0.668,
+   "mix_s": 0.0076,
+   "llm_s": 0.301,
+   "tts_first_s": 0.679,
    "spec_start_s": 0.256,
-   "compute_to_first_audio_s": 1.046,
+   "compute_to_first_audio_s": 1.091,
    "tts_breakdown": {
     "fe": 0.0,
-    "lm": 0.659,
-    "flow_voc": 0.201,
-    "n_tok": 42,
-    "audio_s": 1.68
+    "lm": 0.685,
+    "flow_voc": 0.208,
+    "n_tok": 43,
+    "audio_s": 1.72
    },
    "tts_chunks_s": [
-    0.668,
-    1.721,
-    1.108,
-    0.86
+    0.679,
+    1.738,
+    1.186,
+    0.894
    ],
-   "first_audio": 6.55,
-   "reply_end": 15.75,
-   "latency_s": 1.302
+   "first_audio": 6.595,
+   "reply_end": 15.972,
+   "latency_s": 1.347
   },
   {
    "turn": 1,
-   "user_label": "TTS-synthesized user turn",
+   "user_label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
    "user_ref": "<eng>What should I pack for the weather there?</eng>",
-   "user_start": 16.45,
-   "user_onset": 16.695,
+   "user_start": 16.672,
+   "user_onset": 16.918,
    "backchannels": [],
-   "asr": "what should i park for the weather there",
-   "asr_s": 0.049,
+   "asr": "what should i pack for the weather there",
+   "asr_s": 0.055,
    "eot_wait_s": 0.576,
-   "speech_end": 18.368,
+   "speech_end": 18.592,
    "target": {
     "mix": {
      "eng": 0.88,
@@ -121,86 +122,85 @@
     "pattern": []
    },
    "target_desc": "Match the user's language mix: English about 90%, Hausa about 10% of the words. The main (matrix) language is English.",
-   "reply": "<eng>For Kano tomorrow, pack light clothes and a light jacket—weather will be warm during the day, cool at night. You need a hat too?</eng> <hau>Ya, kaiya da kaiyawa</hau>",
+   "reply": "<eng>For Kano, pack light clothes, a hat, and sunscreen—weather is hot and sunny. You might also need a light jacket for evening. Any specific event?</eng> <hau>Wakai kai kai?</hau>",
    "reply_mix": {
-    "eng": 0.86,
-    "hau": 0.14
+    "eng": 0.9,
+    "hau": 0.1
    },
-   "tvd": 0.021,
+   "tvd": 0.016,
    "how": "first_round",
    "first_cand_ok": true,
    "rounds": [
     {
      "round": 0,
-     "llm_s": 0.335,
+     "llm_s": 0.321,
      "cands": [
       {
-       "text": "<eng>For Kano tomorrow, pack light clothes and a light jacket—weather will be hot during the day, cooler in the evening. You need a hat too?</eng> <hau>Wààtùn kààlà</hau>",
+       "text": "<eng>For Kano, pack light clothes, a hat, and sunscreen—weather is hot and dry. You might also need a scarf for the dust.</eng> <hau>Na gida ne kai?</hau>",
        "ok": true,
        "why": [],
-       "tvd": 0.083
+       "tvd": 0.032
       },
       {
-       "text": "<eng>For the weather in Kano, pack light clothes and a hat — it’s usually hot and sunny. But bring a light jacket for evenings. You need a raincoat?</eng> <hau>Na gida?</hau>",
+       "text": "<eng>For Kano, pack light clothes, a hat, and sunscreen—weather is hot and sunny. You might also need a light jacket for evening. Any specific event?</eng> <hau>Wakai kai kai?</hau>",
        "ok": true,
        "why": [],
-       "tvd": 0.052
+       "tvd": 0.016
       },
       {
-       "text": "<eng>For Kano tomorrow, pack light clothes and a light jacket—weather will be warm during the day, cool at night. You need a hat too?</eng> <hau>Ya, kaiya da kaiyawa</hau>",
+       "text": "<eng>For Kano tomorrow, pack light clothes—hot and sunny. Bring a hat and sunscreen too.</eng> <hau>Wani kai da kai?</hau>",
        "ok": true,
        "why": [],
-       "tvd": 0.021
+       "tvd": 0.096
       }
      ]
     }
    ],
-   "mix_s": 0.0062,
-   "llm_s": 0.335,
-   "tts_first_s": 0.844,
+   "mix_s": 0.0055,
+   "llm_s": 0.321,
+   "tts_first_s": 0.743,
    "spec_start_s": 0.256,
-   "compute_to_first_audio_s": 1.253,
+   "compute_to_first_audio_s": 1.142,
    "tts_breakdown": {
     "fe": 0.0,
-    "lm": 1.232,
-    "flow_voc": 0.203,
-    "n_tok": 76,
-    "audio_s": 3.04
+    "lm": 0.65,
+    "flow_voc": 0.22,
+    "n_tok": 41,
+    "audio_s": 1.64
    },
    "tts_chunks_s": [
-    0.844,
-    2.871,
-    0.917,
-    1.435
+    0.743,
+    2.614,
+    1.588,
+    0.958,
+    0.871
    ],
-   "first_audio": 19.876,
-   "reply_end": 33.707,
-   "latency_s": 1.508
+   "first_audio": 19.99,
+   "reply_end": 34.964,
+   "latency_s": 1.398
   },
   {
    "turn": 2,
-   "user_label": "TTS-synthesized user turn",
+   "user_label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
    "user_ref": "<hau>To, na gode.</hau>",
-   "user_start": 34.407,
-   "user_onset": 34.475,
+   "user_start": 35.664,
+   "user_onset": 35.732,
    "backchannels": [],
-   "asr": "tu na godi",
-   "asr_s": 0.049,
+   "asr": "2 na gode",
+   "asr_s": 0.058,
    "eot_wait_s": 0.576,
-   "speech_end": 35.616,
+   "speech_end": 36.864,
    "target": {
     "mix": {
-     "hau": 0.56,
-     "eng": 0.24,
-     "ibo": 0.2
+     "hau": 0.76,
+     "eng": 0.24
     },
     "matrix": "hau",
     "pattern": [
-     "closing:hau",
-     "inter-sentential"
+     "closing:hau"
     ]
    },
-   "target_desc": "Match the user's language mix: Hausa about 55%, English about 25%, Igbo about 20% of the words. The main (matrix) language is Hausa. The user closed in Hausa: you may close in Hausa.",
+   "target_desc": "Match the user's language mix: Hausa about 75%, English about 25% of the words. The main (matrix) language is Hausa. The user closed in Hausa: you may close in Hausa.",
    "reply": "<hau>Sannu!</hau> <eng>Sorry, I did not catch all of that. Could you say it again, or in English?</eng>",
    "reply_mix": {
     "eng": 0.91,
@@ -212,85 +212,85 @@
    "rounds": [
     {
      "round": 0,
-     "llm_s": 0.264,
+     "llm_s": 0.253,
      "cands": [
       {
-       "text": "<hau>Tu na godi!</hau> <eng>Thank you for the info. Is there anything else I can help with?</eng> <ibo>Daalụ!</ibo>",
+       "text": "<hau>Na gode! Wakai kai kai da kai.</hau>",
        "ok": false,
        "why": [
-        "mix drift tvd=0.52"
+        "missing eng"
        ],
-       "tvd": 0.522
+       "tvd": 0.24
       },
       {
-       "text": "<hau>Tu na godi!</hau> <eng>Thank you, I’m glad I could help.</eng> <ibo>Daalụ!</ibo>",
+       "text": "<hau>Na gode! Kuma kai kai da sani a cikin kai da kai. Kuma ya da ɗan kai kai.</hau>",
        "ok": false,
        "why": [
-        "mix drift tvd=0.42"
+        "missing eng"
        ],
-       "tvd": 0.424
+       "tvd": 0.24
       },
       {
-       "text": "<hau>Tu na Godi!</hau> <eng>Thank you, I’ll keep that in mind.</eng> <ibo>Daalụ ọma!</ibo>",
+       "text": "<hau>Na gode! Wannan yin kai kai da kai.</hau>",
        "ok": false,
        "why": [
-        "mix drift tvd=0.44"
+        "missing eng"
        ],
-       "tvd": 0.435
+       "tvd": 0.24
       }
      ]
     },
     {
      "round": 1,
-     "llm_s": 0.273,
+     "llm_s": 0.23,
      "cands": [
       {
-       "text": "<hau>Tu na Godi!</hau> <eng>Thank you for the help. I’ll make sure to pack for the weather.</eng> <ibo>Dalụ n’ụzọ ịmụ ọrụ.</ibo>",
+       "text": "<hau>Na gode!</hau> <eng>My pleasure. Take care while you travel.</eng>",
        "ok": false,
        "why": [
-        "mix drift tvd=0.49"
+        "mix drift tvd=0.54"
        ],
-       "tvd": 0.485
+       "tvd": 0.539
       },
       {
-       "text": "<hau>Tu na godi!</hau> <eng>Thank you for the info. Is the weather there usually dry this time of year?</eng> <ibo>Ọ dị mma, nke a banyere ike</ibo>",
+       "text": "<hau>Na gode!</hau> <eng>My pleasure. If you need more tips, just ask.</eng>",
        "ok": false,
        "why": [
-        "mix drift tvd=0.50"
+        "mix drift tvd=0.58"
        ],
-       "tvd": 0.5
+       "tvd": 0.579
       },
       {
-       "text": "<hau>Tu na godi!</hau> <eng>Thank you for the info. I’ll keep you posted on the weather.</eng> <ibo>Dalụ na ọma</ibo>",
+       "text": "<hau>Na gode!</hau> <eng>My pleasure. Take care while you travel.</eng> <hau>Wakai kai kai.</hau>",
        "ok": false,
        "why": [
-        "mix drift tvd=0.48"
+        "mix drift tvd=0.34"
        ],
-       "tvd": 0.477
+       "tvd": 0.342
       }
      ]
     }
    ],
-   "mix_s": 0.0031,
-   "llm_s": 0.537,
-   "tts_first_s": 0.629,
+   "mix_s": 0.0015,
+   "llm_s": 0.483,
+   "tts_first_s": 0.64,
    "spec_start_s": 0.256,
-   "compute_to_first_audio_s": 1.249,
+   "compute_to_first_audio_s": 1.206,
    "tts_breakdown": {
     "fe": 0.0,
-    "lm": 1.4,
-    "flow_voc": 0.224,
+    "lm": 1.42,
+    "flow_voc": 0.222,
     "n_tok": 86,
     "audio_s": 3.44
    },
    "tts_chunks_s": [
-    0.629,
-    1.235,
-    1.625
+    0.64,
+    1.267,
+    1.642
    ],
-   "first_audio": 37.121,
-   "reply_end": 44.356,
-   "latency_s": 1.505
+   "first_audio": 38.325,
+   "reply_end": 45.593,
+   "latency_s": 1.461
   }
  ]
 }

samples/04_hausa_greetings_english.mp3

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:c26529b1c1611530b760d00731d371613ec639815d8416a8ec0ef471d12bd622
-size 720812
+oid sha256:19c5000fd7a9f4d008cf4bffd4d8d2d75922bcc3ae3dbf2c4cd54cf80f20afc0
+size 555308

samples/05_igbo_heavy.json

@@ -3,37 +3,40 @@
  "desc": "Igbo-heavier user (shows the weak spot: LLM Igbo beyond phrases). User turns TTS-synthesized (Flash, female Igbo voice).",
  "user_turns": [
   {
-   "label": "TTS-synthesized user turn",
-   "voice": "waxal_ibo_5_female",
-   "text": "<ibo>Kedu? Biko, nyere m aka.</ibo> <eng>I need a taxi to the airport.</eng>"
+   "label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "text": "<ibo>Kedu? Biko, nyere m aka.</ibo> <eng>I need a taxi to the airport.</eng>",
+   "wav": "/scratch/duplex_v2/user_audio/05_igbo_heavy_turn0.wav",
+   "orig_label": "TTS-synthesized user turn"
   },
   {
-   "label": "TTS-synthesized user turn",
-   "voice": "waxal_ibo_5_female",
-   "text": "<ibo>Ee, ọ dị mma.</ibo> <eng>I will leave at six.</eng>"
+   "label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "text": "<ibo>Ee, ọ dị mma.</ibo> <eng>I will leave at six.</eng>",
+   "wav": "/scratch/duplex_v2/user_audio/05_igbo_heavy_turn1.wav",
+   "orig_label": "TTS-synthesized user turn"
   },
   {
-   "label": "TTS-synthesized user turn",
-   "voice": "waxal_ibo_5_female",
-   "text": "<ibo>Daalụ, ka ọ dị.</ibo>"
+   "label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
+   "text": "<ibo>Daalụ, ka ọ dị.</ibo>",
+   "wav": "/scratch/duplex_v2/user_audio/05_igbo_heavy_turn2.wav",
+   "orig_label": "TTS-synthesized user turn"
   }
  ],
  "turns": [
   {
    "turn": 0,
-   "user_label": "TTS-synthesized user turn",
+   "user_label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
    "user_ref": "<ibo>Kedu? Biko, nyere m aka.</ibo> <eng>I need a taxi to the airport.</eng>",
    "user_start": 0.7,
    "user_onset": 0.753,
    "backchannels": [],
-   "asr": "kedu biko nere maaka i need a taxi to the airport",
-   "asr_s": 0.065,
+   "asr": "kedu biko nyere m aka i need a taxis to the airport",
+   "asr_s": 0.093,
    "eot_wait_s": 0.576,
    "speech_end": 5.632,
    "target": {
     "mix": {
-     "eng": 0.82,
-     "ibo": 0.18
+     "eng": 0.58,
+     "ibo": 0.42
     },
     "matrix": "eng",
     "pattern": [
@@ -42,218 +45,260 @@
      "inter-sentential"
     ]
    },
-   "target_desc": "Match the user's language mix: English about 80%, Igbo about 20% of the words. The main (matrix) language is English. The user greeted in Igbo: open with a short Igbo greeting. Sprinkle a Igbo discourse word or two the way the user did.",
+   "target_desc": "Match the user's language mix: English about 60%, Igbo about 40% of the words. The main (matrix) language is English. The user greeted in Igbo: open with a short Igbo greeting. Sprinkle a Igbo discourse word or two the way the user did.",
    "reply": "<ibo>Kedu?</ibo> <eng>Okay, I can help you book a taxi to the airport. How soon do you need it?</eng> <ibo>Biko</ibo>",
    "reply_mix": {
     "eng": 0.89,
     "ibo": 0.11
    },
-   "tvd": 0.072,
-   "how": "first_round",
-   "first_cand_ok": true,
+   "tvd": 0.312,
+   "how": "best_failed",
+   "first_cand_ok": false,
    "rounds": [
     {
      "round": 0,
-     "llm_s": 0.268,
+     "llm_s": 0.302,
      "cands": [
       {
        "text": "<ibo>Kedu?</ibo> <eng>Okay, I can help you book a taxi to the airport. How soon do you need it?</eng> <ibo>Biko</ibo>",
-       "ok": true,
-       "why": [],
-       "tvd": 0.072
+       "ok": false,
+       "why": [
+        "mix drift tvd=0.31"
+       ],
+       "tvd": 0.312
       },
       {
-       "text": "<ibo>Kedu?</ibo> <eng>Okay, I can help you book a taxi to the airport. How soon do you need it?</eng> <ibo>Biko,</ibo>",
-       "ok": true,
-       "why": [],
-       "tvd": 0.072
+       "text": "<ibo>Kedu?</ibo> <eng>Okay, I can help you book a taxi to the airport. How soon do you need it?</eng> <ibo>Na so?</ibo>",
+       "ok": false,
+       "why": [
+        "mix drift tvd=0.45"
+       ],
+       "tvd": 0.45
       },
       {
-       "text": "<ibo>Kedu?</ibo> <eng>Okay, I can help you book a taxi to the airport. How far you want the pickup time?</eng> <ibo>Biko</ibo>",
-       "ok": true,
-       "why": [],
-       "tvd": 0.175
+       "text": "<ibo>Kedu?</ibo> <eng>Yes, I can help you get a taxi to the airport. How soon do you need it?</eng> <ibo>Biko,</ibo> <eng>what time are you leaving?</eng>",
+       "ok": false,
+       "why": [
+        "mix drift tvd=0.32"
+       ],
+       "tvd": 0.318
+      }
+     ]
+    },
+    {
+     "round": 1,
+     "llm_s": 0.236,
+     "cands": [
+      {
+       "text": "<ibo>Kedu?</ibo> <eng>Biko, I go get you a taxi to the airport. How far you need to go?</eng>",
+       "ok": false,
+       "why": [
+        "mix drift tvd=0.44"
+       ],
+       "tvd": 0.44
+      },
+      {
+       "text": "<ibo>Kedu?</ibo> <eng>Biko, I go get a taxi for you to airport now. You dey wait for the car at your gate?</eng>",
+       "ok": false,
+       "why": [
+        "mix drift tvd=0.43"
+       ],
+       "tvd": 0.43
+      },
+      {
+       "text": "<ibo>Kedu?</ibo> <eng>Biko, I dey get a taxi for you to airport. How far you dey from airport?</eng>",
+       "ok": false,
+       "why": [
+        "mix drift tvd=0.44"
+       ],
+       "tvd": 0.44
       }
      ]
     }
    ],
-   "mix_s": 0.0083,
-   "llm_s": 0.268,
-   "tts_first_s": 0.664,
+   "mix_s": 0.0085,
+   "llm_s": 0.538,
+   "tts_first_s": 0.678,
    "spec_start_s": 0.256,
-   "compute_to_first_audio_s": 1.02,
+   "compute_to_first_audio_s": 1.351,
    "tts_breakdown": {
     "fe": 0.035,
-    "lm": 0.088,
-    "flow_voc": 0.198,
+    "lm": 0.09,
+    "flow_voc": 0.202,
     "n_tok": 8,
     "audio_s": 0.32
    },
    "tts_chunks_s": [
-    0.664,
-    1.748,
-    1.012,
-    0.321
+    0.678,
+    1.775,
+    1.017,
+    0.328
    ],
-   "first_audio": 6.908,
-   "reply_end": 14.696,
-   "latency_s": 1.276
+   "first_audio": 7.239,
+   "reply_end": 15.054,
+   "latency_s": 1.607
   },
   {
    "turn": 1,
-   "user_label": "TTS-synthesized user turn",
+   "user_label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
    "user_ref": "<ibo>Ee, ọ dị mma.</ibo> <eng>I will leave at six.</eng>",
-   "user_start": 15.396,
-   "user_onset": 15.453,
+   "user_start": 15.754,
+   "user_onset": 15.811,
    "backchannels": [],
-   "asr": "ee odemma iwelivet six",
-   "asr_s": 0.056,
+   "asr": "ee ọ dị mma ewe live at six",
+   "asr_s": 0.077,
    "eot_wait_s": 0.576,
-   "speech_end": 18.048,
+   "speech_end": 18.4,
    "target": {
     "mix": {
-     "eng": 0.95,
-     "ibo": 0.05
+     "ibo": 0.65,
+     "eng": 0.35
     },
-    "matrix": "eng",
-    "pattern": []
+    "matrix": "ibo",
+    "pattern": [
+     "inter-sentential"
+    ]
    },
-   "target_desc": "Match the user's language mix: English about 95%, Igbo about 5% of the words. The main (matrix) language is English.",
-   "reply": "<eng>Yes, six o’clock is fine.</eng> <ibo>Ọ dị mma</ibo> <eng>Shall I confirm the booking now?</eng>",
+   "target_desc": "Match the user's language mix: Igbo about 65%, English about 35% of the words. The main (matrix) language is Igbo.",
+   "reply": "<ibo>Ee, ọ dị mma.</ibo> <eng>Got it, I’ll book the taxi for six o’clock.</eng> <ibo>Ọ dị mma na?</ibo>",
    "reply_mix": {
-    "eng": 0.79,
-    "ibo": 0.21
+    "eng": 0.56,
+    "ibo": 0.44
    },
-   "tvd": 0.162,
+   "tvd": 0.21,
    "how": "first_round",
    "first_cand_ok": false,
    "rounds": [
     {
      "round": 0,
-     "llm_s": 0.248,
+     "llm_s": 0.268,
      "cands": [
       {
-       "text": "<eng>Yes, I’ll get a taxi for six. Is it okay if I confirm the pickup time with you?</eng> <ibo>Ee</ibo>",
+       "text": "<ibo>Ee, ọ dị mma.</ibo> <eng>Okay, I’ll make sure the taxi arrives by six.</eng> <ibo>Biko</ibo>",
        "ok": false,
        "why": [
-        "non-English tags over English words"
+        "mix drift tvd=0.33"
        ],
-       "tvd": 0.024
+       "tvd": 0.326
       },
       {
-       "text": "<eng>Yes, six o’clock is fine. I’ll book the taxi for six.</eng> <ibo>Odemma</ibo>",
+       "text": "<ibo>Ee, ọ dị mma!</ibo> <eng>The flight leaves at six. Is that correct?</eng> <ibo>Biko</ibo>",
        "ok": false,
        "why": [
-        "non-English tags over English words"
+        "mix drift tvd=0.30"
        ],
-       "tvd": 0.008
+       "tvd": 0.303
       },
       {
-       "text": "<eng>Yes, six o’clock is fine.</eng> <ibo>Ọ dị mma</ibo> <eng>Shall I confirm the booking now?</eng>",
+       "text": "<ibo>Ee, ọ dị mma.</ibo> <eng>Got it, I’ll book the taxi for six o’clock.</eng> <ibo>Ọ dị mma na?</ibo>",
        "ok": true,
        "why": [],
-       "tvd": 0.162
+       "tvd": 0.21
       }
      ]
     }
    ],
-   "mix_s": 0.0033,
-   "llm_s": 0.248,
-   "tts_first_s": 1.168,
+   "mix_s": 0.0058,
+   "llm_s": 0.268,
+   "tts_first_s": 0.913,
    "spec_start_s": 0.256,
-   "compute_to_first_audio_s": 1.488,
+   "compute_to_first_audio_s": 1.278,
    "tts_breakdown": {
     "fe": 0.0,
-    "lm": 1.265,
-    "flow_voc": 0.206,
-    "n_tok": 78,
-    "audio_s": 3.12
+    "lm": 0.634,
+    "flow_voc": 0.217,
+    "n_tok": 40,
+    "audio_s": 1.6
    },
    "tts_chunks_s": [
-    1.168,
-    1.47
+    0.913,
+    1.908,
+    0.851
    ],
-   "first_audio": 19.792,
-   "reply_end": 25.312,
-   "latency_s": 1.744
+   "first_audio": 19.935,
+   "reply_end": 27.483,
+   "latency_s": 1.535
   },
   {
    "turn": 2,
-   "user_label": "TTS-synthesized user turn",
+   "user_label": "TTS-synthesized user turn [identical input audio recovered from the 2026-10-24 demo]",
    "user_ref": "<ibo>Daalụ, ka ọ dị.</ibo>",
-   "user_start": 26.012,
-   "user_onset": 26.077,
+   "user_start": 28.183,
+   "user_onset": 28.248,
    "backchannels": [],
-   "asr": "dalo kode",
-   "asr_s": 0.043,
+   "asr": "daalụ kaọdị",
+   "asr_s": 0.056,
    "eot_wait_s": 0.576,
-   "speech_end": 27.488,
+   "speech_end": 29.664,
    "target": {
     "mix": {
-     "ibo": 0.5,
-     "eng": 0.47
+     "ibo": 0.88,
+     "eng": 0.12
     },
     "matrix": "ibo",
     "pattern": [
-     "closing:ibo",
-     "inter-sentential"
+     "closing:ibo"
     ]
    },
-   "target_desc": "Match the user's language mix: Igbo about 50%, English about 45% of the words. The main (matrix) language is Igbo. The user closed in Igbo: you may close in Igbo.",
-   "reply": "<ibo>Daalụ, ọ dị mma.</ibo> <eng>Thank you, I’ve confirmed your taxi for six.</eng> <ibo>Ka ọ dị.</ibo>",
+   "target_desc": "Match the user's language mix: Igbo about 90%, English about 10% of the words. The main (matrix) language is Igbo. The user closed in Igbo: you may close in Igbo.",
+   "reply": "<ibo>Daalụ kaọdị.</ibo> <eng>See you later!</eng> <ibo>Ọ dị mma.</ibo>",
    "reply_mix": {
-    "eng": 0.53,
-    "ibo": 0.47
+    "eng": 0.38,
+    "ibo": 0.62
    },
-   "tvd": 0.047,
+   "tvd": 0.257,
    "how": "first_round",
-   "first_cand_ok": true,
+   "first_cand_ok": false,
    "rounds": [
     {
      "round": 0,
-     "llm_s": 0.277,
+     "llm_s": 0.247,
      "cands": [
       {
-       "text": "<ibo>Daalụ, biko.</ibo> <eng>Thank you, I’ll confirm your taxi for six o’clock.</eng> <ibo>Ka ọ dị.</ibo>",
-       "ok": true,
-       "why": [],
-       "tvd": 0.156
+       "text": "<ibo>Daalụ kaọdị.</ibo> <eng>Thank you, I’ll see you at six.</eng> <ibo>Ọ dị mma.</ibo>",
+       "ok": false,
+       "why": [
+        "mix drift tvd=0.46"
+       ],
+       "tvd": 0.462
       },
       {
-       "text": "<ibo>Daalụ, biko.</ibo> <eng>Thank you, I’ll confirm your taxi for six.</eng> <ibo>Ka ọ dị.</ibo>",
+       "text": "<ibo>Daalụ kaọdị.</ibo> <eng>See you later!</eng> <ibo>Ọ dị mma.</ibo>",
        "ok": true,
        "why": [],
-       "tvd": 0.133
+       "tvd": 0.257
       },
       {
-       "text": "<ibo>Daalụ, ọ dị mma.</ibo> <eng>Thank you, I’ve confirmed your taxi for six.</eng> <ibo>Ka ọ dị.</ibo>",
-       "ok": true,
-       "why": [],
-       "tvd": 0.047
+       "text": "<ibo>Daalụ kaọdị.</ibo> <eng>Thank you, have a safe trip.</eng>",
+       "ok": false,
+       "why": [
+        "mix drift tvd=0.63"
+       ],
+       "tvd": 0.63
       }
      ]
     }
    ],
-   "mix_s": 0.002,
-   "llm_s": 0.277,
-   "tts_first_s": 1.131,
+   "mix_s": 0.0016,
+   "llm_s": 0.247,
+   "tts_first_s": 0.864,
    "spec_start_s": 0.256,
-   "compute_to_first_audio_s": 1.468,
+   "compute_to_first_audio_s": 1.179,
    "tts_breakdown": {
     "fe": 0.0,
-    "lm": 0.511,
-    "flow_voc": 0.22,
-    "n_tok": 33,
-    "audio_s": 1.32
+    "lm": 0.482,
+    "flow_voc": 0.208,
+    "n_tok": 31,
+    "audio_s": 1.24
    },
    "tts_chunks_s": [
-    1.131,
-    1.498,
-    0.731
+    0.864,
+    0.728,
+    0.69
    ],
-   "first_audio": 29.212,
-   "reply_end": 35.972,
-   "latency_s": 1.724
+   "first_audio": 31.099,
+   "reply_end": 35.299,
+   "latency_s": 1.435
   }
  ]
 }

samples/05_igbo_heavy.mp3

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:18334bf0803cd8a34e9c4ed001a026e09e27e44badb2b01adeab91a8a98172fd
-size 586412
+oid sha256:bbf0c9e8871a54ec88fc4b6e6032a01586ef265a3fb1ca16f54a97716e2364c4
+size 431756