ryan5453/demucs 🔢🖼️❓📝 → ❓

▶️ 2.1M runs 📅 Nov 2022 ⚙️ Cog 0.21.0 🔗 GitHub 📄 Paper ⚖️ License

audio-to-audio music-source-separation vocal-removal

Performance

25.0sTypical run time

~176sCold start (first call)

2.1MTotal runs

About

Demucs is an audio source separator created by Facebook Research.

Example Output

Output

{"bass":"https://storage.googleapis.com/replicate-files/DGKrtyY9DLJpDNwK8wyx1YJTwffy136G7ST6XM2Mwzp4i2vSA/file","drums":"https://storage.googleapis.com/replicate-files/tyAr6QMjIl7mP5YPNZWf29VzlG4eRQZScDf64DdxMfMdLafVC/file","other":"https://storage.googleapis.com/replicate-files/evRBGYcxmfpCJ0qwn8ELHW0BzfsytARPYUOqeK728qcnLafVC/file","vocals":"https://storage.googleapis.com/replicate-files/fWw45bCZ5ZWILSET8mslNXu2gI4DiBD3NDaCixz2WnvcR7XJA/file"}

Performance Metrics

25.03s Prediction Time

175.54s Total Time

All Input Parameters

{
  "jobs": 0,
  "stem": "none",
  "audio": "https://replicate.delivery/pbxt/KqCC8G0RySCjKBQinde7gog9XwsfUR8uF6IyD2h6HPirewAg/Josh%20Woodward%20-%20Are%20You%20Having%20Fun",
  "model": "htdemucs",
  "split": true,
  "shifts": 1,
  "overlap": 0.25,
  "clip_mode": "rescale",
  "mp3_preset": 2,
  "wav_format": "int24",
  "mp3_bitrate": 320,
  "output_format": "mp3"
}

Input Parameters

seed Type: integerDefault: -1: Seed for the random shifts, for reproducible output; -1 for random
audio (required) Type: string: The audio file to separate
model Default: htdemucs: Model to use for separation (this deployment serves htdemucs)
format Type: stringDefault: wav: Output audio format, anything supported by FFmpeg
shifts Type: integerDefault: 1Range: 0 - 20: Random time shifts to average; more is slower and slightly better. 0 disables them
clip_mode Default: rescale: How to keep output within [-1, 1]; "none" leaves it unchanged
isolate_stem Default: none: Only creates a {stem} and no_{stem} stem/file
split_overlap Type: numberDefault: 0.25Range: 0 - 0.99: Overlap between segments; higher values improve quality at segment boundaries

Output Schema

bass Type: stringFormat: uri: Bass
drums Type: stringFormat: uri: Drums
other Type: stringFormat: uri: Other
vocals Type: stringFormat: uri: Vocals
no_bass Type: stringFormat: uri: No Bass
no_drums Type: stringFormat: uri: No Drums
no_other Type: stringFormat: uri: No Other
no_vocals Type: stringFormat: uri: No Vocals

Example Execution Logs

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100%|██████████████████████████████████████████████| 163.79999999999998/163.79999999999998 [00:03<00:00, 48.72seconds/s]
100%|██████████████████████████████████████████████| 163.79999999999998/163.79999999999998 [00:03<00:00, 42.77seconds/s]

Version Details

Version ID: ff5ad47d2685b27c0f820ee134c4394140804f08fa755cb20c846459faa4b337
Version Created: October 3, 2026

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