# Which sample rate and sample format does Unity Recorder 5.1.7's Audio Recorder write, and can I choose them?

- id: art_01M5NNCJJXM1089YBXSC35KH41
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T10, T13, T18 · tags: none
- updated: 2026-10-24T00:36:19.672Z
- url: https://veyrul.com/articles/art_01M5NNCJJXM1089YBXSC35KH41

The Unity Recorder (5.1.7 per mirror) writes WAV audio as 32-bit IEEE float at whatever the project's audio output sample rate is (AudioSettings.outputSampleRate), not a Recorder setting; check the project/device rate before delivering audio to finishing.

The Unity Recorder (5.1.7 per mirror) writes WAV audio as 32-bit IEEE float at whatever the project's audio output sample rate is (AudioSettings.outputSampleRate), not a Recorder setting; check the project/device rate before delivering audio to finishing.

Curator qualifications: Code read 2026-10-22 from an unofficial mirror; nothing recorded or encoded. Source is needle-mirror (unofficial mirror of the Unity Recorder package); byte identity with the Unity-distributed package not verified. Docs-page absence of a sample-rate setting from producer reading. Curator amendment CA-AM-0039 (2026-10-22): Scope note (curator, from C3R-0449 / C3-B222-G68): these statements are code_derived_inference from the needle-mirror source whose package.json matches the official UPM 5.1.7 registry metadata; file-level identity with the official tarball is unverified. Official Unity docs state none of them (no sample rate/bit depth; no PNG/JPEG sRGB forcing beyond EXR-only linear option; no ProRes colour definition). Cite them as code-level behaviour of the mirrored 5.1.7 source, not documented behaviour.

Limitations: Code read 2026-10-22 from an unofficial mirror; nothing recorded or encoded.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://github.com/needle-mirror/com.unity.recorder/blob/df67fd77586abcdee9644ffc28a21729f5436ea6/Documentation~/RecorderAudio.md",
      "note": "needle-mirror com.unity.recorder df67fd77 Editor/Sources/Recorders/AudioRecorder/AudioRecorder.cs L92-L111"
    },
    {
      "url": "https://github.com/needle-mirror/com.unity.recorder/blob/df67fd77586abcdee9644ffc28a21729f5436ea6/package.json",
      "note": "needle-mirror com.unity.recorder df67fd77 Editor/Sources/Recorders/AudioRecorder/AudioRecorder.cs L92-L111"
    },
    {
      "url": "https://github.com/needle-mirror/com.unity.recorder/blob/df67fd77586abcdee9644ffc28a21729f5436ea6/Editor/Sources/Recorders/AudioRecorder/AudioRecorder.cs",
      "note": "needle-mirror com.unity.recorder df67fd77 Editor/Sources/Recorders/AudioRecorder/AudioRecorder.cs L92-L111"
    },
    {
      "url": "https://github.com/needle-mirror/com.unity.recorder/blob/df67fd77586abcdee9644ffc28a21729f5436ea6/Editor/Sources/Recorders/_Inputs/Audio/AudioInput.cs",
      "note": "needle-mirror com.unity.recorder df67fd77 Editor/Sources/Recorders/AudioRecorder/AudioRecorder.cs L92-L111"
    },
    {
      "url": "https://github.com/needle-mirror/com.unity.recorder/blob/df67fd77586abcdee9644ffc28a21729f5436ea6/CHANGELOG.md",
      "note": "needle-mirror com.unity.recorder df67fd77 Editor/Sources/Recorders/AudioRecorder/AudioRecorder.cs L92-L111"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] The Unity Recorder (5.1.7 per mirror) writes WAV audio as 32-bit IEEE float at whatever the project's audio output sample rate is (AudioSettings.outputSampleRate), not a Recorder setting; check the project/device rate before delivering audio to finishing. · locator: needle-mirror com.unity.recorder df67fd77 Editor/Sources/Recorders/AudioRecorder/AudioRecorder.cs L92-L111 · source: https://github.com/needle-mirror/com.unity.recorder/blob/df67fd77586abcdee9644ffc28a21729f5436ea6/Documentation~/RecorderAudio.md

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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