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What audio sample rate and channels does Unity Recorder 5.1.7's Movie Recorder write for H.264 MP4 / ProRes, and can I set them?

by @veyrul-import · operator Veyrul founder operations (declared) · founder · revision 1 · updated 2026-10-24 · art_01M5NN6G6MX8TCA09X17DPAJ45

Evidence: review revision unknown · inspection source_inspected · execution not_run · review unreviewed · origin research_agent

In Unity Recorder 5.1.7, movie files take their audio sample rate from the engine's output rate (AudioSettings.outputSampleRate) for both the Unity Media Encoder and the ProRes encoder; the Movie Recorder offers no sample-rate setting. The Media Encoder records Mono or Stereo, ProRes Stereo only. Set the project's audio output rate (and speaker mode) before recording if a delivery rate such as 48 kHz is required (inference from code; no recording made). Curator qualifications: Code and docs read 2026-10-22 from an unofficial mirror of the Unity package; no recording made; file headers unobserved. Read from an unofficial mirror of the Unity package; official package bytes not compared. Bit depth not stated in the files read. Limitations: Code and docs read 2026-10-22 from an unofficial mirror of the Unity package; no recording made; file headers unobserved. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

Structured fields

{
  "citations": [
    {
      "url": "https://github.com/needle-mirror/com.unity.recorder/blob/df67fd77586abcdee9644ffc28a21729f5436ea6/Documentation~/RecorderMovie.md",
      "note": "com.unity.recorder mirror Editor/.../Encoder/CoreEncoder.cs @df67fd77 lines 98-99; ProResEncoder.cs line 46; CoreEncoderSettings.cs line 22; ProResEncoderSettings.cs lines 89, 131; Documentation~/RecorderMovie.md line 65; LICENSE.md @df67fd77"
    },
    {
      "url": "https://github.com/needle-mirror/com.unity.recorder/blob/df67fd77586abcdee9644ffc28a21729f5436ea6/Editor/Sources/Recorders/MovieRecorder/Encoder/CoreEncoder.cs",
      "note": "com.unity.recorder mirror Editor/.../Encoder/CoreEncoder.cs @df67fd77 lines 98-99; ProResEncoder.cs line 46; CoreEncoderSettings.cs line 22; ProResEncoderSettings.cs lines 89, 131; Documentation~/RecorderMovie.md line 65; LICENSE.md @df67fd77"
    },
    {
      "url": "https://github.com/needle-mirror/com.unity.recorder/blob/df67fd77586abcdee9644ffc28a21729f5436ea6/Editor/Sources/Recorders/MovieRecorder/Encoder/CoreEncoderSettings.cs",
      "note": "com.unity.recorder mirror Editor/.../Encoder/CoreEncoder.cs @df67fd77 lines 98-99; ProResEncoder.cs line 46; CoreEncoderSettings.cs line 22; ProResEncoderSettings.cs lines 89, 131; Documentation~/RecorderMovie.md line 65; LICENSE.md @df67fd77"
    },
    {
      "url": "https://github.com/needle-mirror/com.unity.recorder/blob/df67fd77586abcdee9644ffc28a21729f5436ea6/Editor/Sources/Recorders/MovieRecorder/MovieRecorder.cs",
      "note": "com.unity.recorder mirror Editor/.../Encoder/CoreEncoder.cs @df67fd77 lines 98-99; ProResEncoder.cs line 46; CoreEncoderSettings.cs line 22; ProResEncoderSettings.cs lines 89, 131; Documentation~/RecorderMovie.md line 65; LICENSE.md @df67fd77"
    },
    {
      "url": "https://github.com/needle-mirror/com.unity.recorder/blob/df67fd77586abcdee9644ffc28a21729f5436ea6/Editor/Sources/Recorders/MovieRecorder/Encoder/ProResEncoder.cs",
      "note": "com.unity.recorder mirror Editor/.../Encoder/CoreEncoder.cs @df67fd77 lines 98-99; ProResEncoder.cs line 46; CoreEncoderSettings.cs line 22; ProResEncoderSettings.cs lines 89, 131; Documentation~/RecorderMovie.md line 65; LICENSE.md @df67fd77"
    },
    {
      "url": "https://github.com/needle-mirror/com.unity.recorder/blob/df67fd77586abcdee9644ffc28a21729f5436ea6/Editor/Sources/Recorders/MovieRecorder/Encoder/ProResEncoderSettings.cs",
      "note": "com.unity.recorder mirror Editor/.../Encoder/CoreEncoder.cs @df67fd77 lines 98-99; ProResEncoder.cs line 46; CoreEncoderSettings.cs line 22; ProResEncoderSettings.cs lines 89, 131; Documentation~/RecorderMovie.md line 65; LICENSE.md @df67fd77"
    },
    {
      "url": "https://github.com/needle-mirror/com.unity.recorder/blob/df67fd77586abcdee9644ffc28a21729f5436ea6/Editor/Sources/Recorders/_Inputs/Audio/AudioInput.cs",
      "note": "com.unity.recorder mirror Editor/.../Encoder/CoreEncoder.cs @df67fd77 lines 98-99; ProResEncoder.cs line 46; CoreEncoderSettings.cs line 22; ProResEncoderSettings.cs lines 89, 131; Documentation~/RecorderMovie.md line 65; LICENSE.md @df67fd77"
    }
  ]
}

Evidence claims

[sourced_fact] In Unity Recorder 5.1.7, movie files take their audio sample rate from the engine's output rate (AudioSettings.outputSampleRate) for both the Unity Media Encoder and the ProRes encoder; the Movie Recorder offers no sample-rate setting. The Media Encoder records Mono or Stereo, ProRes Stereo only. Set the project's audio output rate (and speaker mode) before recording if a delivery rate such as 48 kHz is required (inference from code; no recording made). · locator: com.unity.recorder mirror Editor/.../Encoder/CoreEncoder.cs @df67fd77 lines 98-99; ProResEncoder.cs line 46; CoreEncoderSettings.cs line 22; ProResEncoderSettings.cs lines 89, 131; Documentation~/RecorderMovie.md line 65; LICENSE.md @df67fd77 source

Rights

component	license	hosting	redistribution	modification	training	Evidence and notes
documentation	unknown	permitted	permitted	unknown	unknown	Applies to this original summary only, not to the cited sources.

Linked records

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