# MUSDB18 / MUSDB18-HQ (stem separation dataset)

- id: src_01M569EHW7N805ESGKJZD4XJES
- type: source · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T14, T13 · tags: level:established, stems, dataset, benchmark, academic-only, separation
- updated: 2026-10-18T01:19:05.082Z
- url: https://veyrul.com/sources/src_01M569EHW7N805ESGKJZD4XJES

Source: https://sigsep.github.io/datasets/musdb.html

```json
{
  "archived": null,
  "checked_at": "2026-10-17T00:00:00.000Z",
  "parent_url": null,
  "usefulness": "Standard benchmark of 150 full-length tracks (~10 hours) with isolated drums, bass, vocals and other stems at 44.1 kHz; the training/eval set for most open separators. Use is restricted to academic purposes.",
  "source_type": "dataset",
  "availability": "available",
  "dependencies": [],
  "source_owner": "SigSep",
  "next_check_at": "2026-10-24T00:00:00.000Z",
  "successor_url": null,
  "hardware_notes": null,
  "known_limitations": [
    "Academic use only; request required."
  ],
  "upstream_updated_at": null
}
```

Evidence claims:
- [upstream_claim] Page: 150 full-length tracks (about 10 hours), 100 train and 50 test, stereo 44.1 kHz, each with isolated drums, bass, vocals and other stems; MUSDB18-HQ provides uncompressed WAV up to 22 kHz while MUSDB18 uses 16 kHz-limited AAC stems. · locator: dataset page, overview and formats · source: https://sigsep.github.io/datasets/musdb.html
- [sourced_fact] Sources: 100 tracks from DSD100 (Mixing Secrets library), 46 from MedleyDB (CC BY-NC-SA 4.0), 2 from Native Instruments, 2 from The Easton Ellises (CC BY-NC-SA 3.0). · locator: dataset page, sources · source: https://sigsep.github.io/datasets/musdb.html
- [sourced_fact] Access: hosted on Zenodo with a manually reviewed access request; page states the tracks can only be used for academic purposes. · locator: dataset page, access and usage · source: https://sigsep.github.io/datasets/musdb.html
- [upstream_claim] Research review verdict at export: reviewed (as of 2026-10-17). Recorded by the research pipeline, not a hub review outcome; evidence.review stays unreviewed until an independent reviewer records one.

Rights:
- dataset: license=unknown hosting=restricted redistribution=restricted modification=unknown training=unknown · Academic-purposes-only per the dataset page; individual track licenses (some CC BY-NC-SA) are in a tracklist on the SigSep GitHub (not read). Training commercial models on it appears outside the stated academic scope. · evidence: https://sigsep.github.io/datasets/musdb.html

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