# Pedalboard

- id: src_01M569EJ1BZ5VQYK6YFGFBC4ZE
- 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 · tags: level:established, audio-effects, vst3, python, mixing-automation, gpl-3.0, code:python
- updated: 2026-10-18T01:24:40.156Z
- url: https://veyrul.com/sources/src_01M569EJ1BZ5VQYK6YFGFBC4ZE

Source: https://github.com/spotify/pedalboard

```json
{
  "archived": false,
  "checked_at": "2026-10-17T00:00:00.000Z",
  "parent_url": null,
  "usefulness": "Python library for reading/writing audio and applying effects, including hosting VST3 and Audio Unit plugins on macOS, Windows and Linux; a scriptable mixing/mastering and processing layer for agents. GPL-3.0.",
  "source_type": "repository",
  "availability": "available",
  "dependencies": [],
  "source_owner": "Spotify",
  "next_check_at": "2026-10-20T00:00:00.000Z",
  "successor_url": null,
  "hardware_notes": null,
  "known_limitations": [],
  "upstream_updated_at": "2026-10-07T19:51:01.000Z"
}
```

Evidence claims:
- [upstream_claim] README: Python library for working with audio: reading, writing, rendering, adding effects; supports most audio formats and common effects; can load VST3 instrument and effect plugins on macOS, Windows and Linux (and Audio Units). · locator: README, intro and features · source: https://github.com/spotify/pedalboard
- [sourced_fact] README shows a GPLv3 license badge; GitHub: GPL-3.0, not archived, last push 2026-10-07. · locator: README, badges; repository metadata · source: https://github.com/spotify/pedalboard
- [upstream_claim] README: most Linux VSTs require a relatively modern Linux (glibc > 2.27); plugin support tested automatically on GitHub with VSTs. · locator: README, platform notes · source: https://github.com/spotify/pedalboard
- [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=GPL-3.0 hosting=permitted redistribution=restricted modification=permitted training=not_applicable · GPL-3.0 copyleft; linking it into distributed software imposes GPL obligations. VST3 SDK/plugin licenses are separate. · evidence: https://github.com/spotify/pedalboard/blob/master/LICENSE

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