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gdrive-transcript1-audio-chunks-20260805-source-06
This gated dataset contains 2,117 MP3 speech and audio-event chunks from 50 recordings. Access requires manual approval by the repository owner.
Audio selection
- Every complete source recording was separated once with HTDemucs.
- Full vocal stems were stored remotely as 48 kHz mono 96k MP3; no per-chunk source separation was performed.
- Librosa SNR was calculated independently on aligned original and saved-vocals slices using maximum frame RMS and the 10th-percentile RMS floor.
- Chunks with finite
snr_after_librosa_db - snr_before_librosa_db >= 0were cut from the saved full vocals MP3. Chunks below 0 dB were cut from the original recording. Non-finite comparisons conservatively use the original. - Noise was labelled in metadata and did not by itself trigger denoising.
Counts
- Chunks: 2,117
- Standalone audio-tag chunks: 0
- Speech chunks retaining inline audio tags: 50
- Non-music tag rows attached to nearest same-speaker speech: 55
- Music annotation boundaries: 238
- Duration: 6.626 hours
- Chunks using Demucs vocals: 1,152
- Chunks using original audio: 965
- Non-finite SNR comparisons using original fallback: 11
- Music/beat-labelled chunks (metadata only): 1
- Noise-labelled chunks: 17
- Transcript source:
transcript_sbpn_diarized
Automated quality decisions are conservative estimates and should be audited before irreversible filtering or model training.
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