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audioduration (s)
900
900
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63
233
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listlengths
63
233
cluster
listlengths
63
233
species
stringclasses
1 value
sr
int64
16k
16k
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int64
0
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float64
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eps
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seconds
dict
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stringlengths
33
33
duration_seconds
float64
900
900
speech_seconds
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130
783
pcm_sha256
stringlengths
64
64
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human
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train/human_-5KQ66BBWC4_clip.flac
900
181.61
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human
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train/human_-FaXLcSFjUI_clip.flac
900
141.51
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human
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train/human_-IELREHX_js_clip.flac
900
315.86
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human
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train/human_053oq2xB3oU_clip.flac
900
600.22
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human
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train/human_0f39OWEqJ24_clip.flac
900
219.89
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human
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train/human_1j20qq1JyX4_clip.flac
900
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human
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train/human_20TAGRElvfE_clip.flac
900
520.47
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human
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train/human_26V9UzqSguo_clip.flac
900
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human
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train/human_2DUITARAsWQ_clip.flac
900
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human
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train/human_2PpxiG0WU18_clip.flac
900
248.92
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human
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train/human_2XeFK-DTSZk_clip.flac
900
287.6
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human
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train/human_2bxKkUgcqpk_clip.flac
900
444.19
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human
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train/human_2fwni_Kjf2M_clip.flac
900
474.77
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human
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train/human_2qQs3Y9OJX0_clip.flac
900
484.6
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human
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train/human_32HR3MnDZ8g_clip.flac
900
391.71
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[ "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPEECH", "human_SPE...
human
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train/human_4ZpjKfu6Cl8_clip.flac
900
534.95
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human
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{ "starts": [ 0.5, 15.230000000000018, 29.610000000000014, 85.75, 88.01999999999998, 95.02999999999996, 103.57000000000004, 119.25, 127.08999999999992, 128.69000000000003, 134.47000000000003, 140.75, 145.51999999999998, 175.44000000000003, 177.1500000000001,...
train/human_4gVsDd8PV9U_clip.flac
900
302.58
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human
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train/human_55Ihr6uVIDA_clip.flac
900
244.65
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human
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{ "starts": [ 0, 7.399999999999977, 8.759999999999991, 22.44000000000005, 31.840000000000032, 37.54999999999996, 39.54999999999996, 45.39999999999998, 49.14999999999998, 52.78999999999997, 87.20000000000005, 92.14999999999998, 135.27999999999997, 178.40000000000...
train/human_5BDj0ow5hnA_clip.flac
900
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human
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0.2
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{ "starts": [ 2.3500000000000227, 3.909999999999968, 31, 34.90999999999997, 75.59000000000003, 79.08000000000004, 84.35000000000002, 89.14999999999998, 99.71000000000004, 106.20000000000005, 111.39999999999998, 114.54999999999995, 120, 127.92000000000009, 12...
train/human_5milLu-6bWI_clip.flac
900
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End of preview. Expand in Data Studio

AVA Speech 人工标注训练数据

来源为 MigoXV/vad-human-ava-speech,固定提交 ee5e35d06a268fe051d3cf8c6672c42c05e60887。保留全部 160 条录音、原 11 个标注字段及原始 FLAC 字节;不裁剪、不重采样、不重标注。每条原 train 录音 900 秒,原 test 录音 300 秒。16kHz、单声道、PCM16,无损 FLAC,音频与标签内嵌 Parquet。

划分与时长

划分 原录音数 总时长(小时) 有效语音(小时) 非语音(小时)
train 142 35.500000 18.670808 16.829192
validation 16 4.000000 2.027214 1.972786
test 2 0.166667 0.089531 0.077136

全量共 39 小时 40 分钟。有效语音 20.787553 小时(52.405595%),非语音 18.879114 小时(47.594405%)。按区间并集统计,完整数字及逐录音 PCM 哈希见 provenance.json。原 test 两条录音保持原划分;原 train 中按 sha256(ava-validation-v1:audio.path) 排序,前 16 条作 validation,其余 142 条作 train。录音间无泄漏,选择验证集不依赖标签。

训练契约

audio 是 Hugging Face Audio;seconds.starts 是原 onset 秒数,seconds.durations 是 offset-onset 秒数。原 onset/offset/cluster 等 11 个字段仍保留,新增 recording_id、duration_seconds、speech_seconds 和 pcm_sha256。训练读取只用 datasets.load_dataset;不得将原标注格式误认为训练字段。

from datasets import load_dataset, Audio
data = load_dataset('MigoXV/vad-human-ava-speech-training')
raw = data.cast_column('audio', Audio(sampling_rate=16000, decode=False))
# raw['train'][0]['audio']['bytes'] 为完整 FLAC;使用 soundfile 解码。

可复现与使用边界

固定转换实现见仓库 tools/prepare_ava.py。转换校验采样率、通道、编码、时间边界和完整长度,计算每条 PCM SHA256。数据适配 preludio2 AttetionVadDataModule 的三个 split,全部采用人工原标签。验证集用于选权重与阈值,测试集只能作独立最终评估;执行成功不代表达到生产精度。来源镜像声明 Apache-2.0,电影音视频的第三方权利不因重新封装改变。

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