# MMAudio (video-to-audio synthesis, CVPR 2025)

- id: src_01M569EHPJEH7M622J6TZBRJYT
- type: source · status: active · revision: 2
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T14, T13 · tags: level:advanced, video-to-audio, foley, synchronized-audio, cc-by-nc-weights, code:python
- updated: 2026-10-18T01:24:16.665Z
- url: https://veyrul.com/sources/src_01M569EHPJEH7M622J6TZBRJYT

Source: https://github.com/hkchengrex/mmaudio

```json
{
  "archived": false,
  "checked_at": "2026-10-17T00:00:00.000Z",
  "parent_url": null,
  "usefulness": "Generates synchronized audio (Foley, ambience) for video or text using multimodal joint training; about 6 GB GPU memory in 16-bit; default 8-second clips. MIT code, CC-BY-NC checkpoints.",
  "source_type": "repository",
  "availability": "available",
  "dependencies": [],
  "source_owner": "Ho Kei Cheng et al.",
  "next_check_at": "2026-10-31T00:00:00.000Z",
  "successor_url": null,
  "hardware_notes": "~6 GB GPU memory (16-bit) per README.",
  "known_limitations": [
    "8 s default duration; non-commercial weights."
  ],
  "upstream_updated_at": "2026-02-23T06:09:19.000Z"
}
```

Evidence claims:
- [upstream_claim] README: inference takes around 6GB GPU memory in 16-bit mode; default output and training duration is 8 seconds and large deviations may reduce quality. · locator: README, requirements and notes · source: https://github.com/hkchengrex/MMAudio
- [sourced_fact] README: trained on several datasets including AudioSet, Freesound (LAION-audio-630k), VGGSound and others. · locator: README, training data note · source: https://github.com/hkchengrex/MMAudio
- [sourced_fact] README License: code MIT; checkpoints released on Hugging Face under CC-BY-NC 4.0. · locator: README, License · source: https://github.com/hkchengrex/MMAudio
- [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:
- code: license=MIT hosting=permitted redistribution=permitted modification=permitted training=unknown · MIT per README. · evidence: https://github.com/hkchengrex/MMAudio/blob/main/LICENSE
- model_weights: license=CC-BY-NC-4.0 hosting=restricted redistribution=restricted modification=restricted training=unknown · README: checkpoints CC-BY-NC 4.0 (non-commercial); training datasets include web-sourced audio with varying rights. · evidence: https://github.com/hkchengrex/MMAudio#license

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