# What do Unity Recorder 5.1.7 and Time.captureFramerate document about constant versus variable frame rate capture, audio capture and determinism?

- id: art_01M5NN9J5P16PVMQTZGYM54S5D
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=metadata_checked, execution=not_run, review=unreviewed
- categories: T10, T18, T19 · tags: none
- updated: 2026-10-24T00:34:40.944Z
- url: https://veyrul.com/articles/art_01M5NN9J5P16PVMQTZGYM54S5D

Partially verified: the curator re-read R5, R6; R10, R11, R7, R8, R9 were not re-read by the curator and rest on the producer's pinned reading. Unity Recorder offers Constant playback (fixed interval between recorded frames, recommended for non-interactive content) and Variable playback (game-view timing); Time.captureDeltaTime advances game time at a fixed interval regardless of real time. The docs read do not state that Constant mode uses captureDeltaTime (producer note kept).

Partially verified: the curator re-read R5, R6; R10, R11, R7, R8, R9 were not re-read by the curator and rest on the producer's pinned reading.

Unity Recorder offers Constant playback (fixed interval between recorded frames, recommended for non-interactive content) and Variable playback (game-view timing); Time.captureDeltaTime advances game time at a fixed interval regardless of real time. The docs read do not state that Constant mode uses captureDeltaTime (producer note kept).

Curator qualifications: Partially verified: the curator re-read R5, R6; R10, R11, R7, R8, R9 were not re-read by the curator and rest on the producer's pinned reading. Curator GET 2026-10-23 of the sources not re-read (mechanical source evidence, not semantic verification): R10: HTTP 200, bytes equal to the producer pin; R11: HTTP 200, bytes equal to the producer pin; R7: HTTP 200, bytes differ from the producer pin; R8: HTTP 200, bytes equal to the producer pin; R9: HTTP 200, bytes equal to the producer pin. Docs/code read 2026-10-22; no engine run, no capture made. Constant-mode wording not re-located verbatim; Audio Recorder (WAV mono/stereo) and Accumulation details from producer reading.

Limitations: Docs/code read 2026-10-22; no engine run, no capture made.

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

```json
{
  "citations": [
    {
      "url": "https://docs.unity3d.com/Packages/com.unity.recorder@5.1/manual/RecorderMovie.html",
      "note": "Unity Recorder 5.1 Recording session properties (live); Unity Time.captureDeltaTime"
    },
    {
      "url": "https://docs.unity3d.com/Packages/com.unity.recorder@5.1/manual/RecordingAccumulation.html",
      "note": "Unity Recorder 5.1 Recording session properties (live); Unity Time.captureDeltaTime"
    },
    {
      "url": "https://docs.unity3d.com/Packages/com.unity.recorder@5.1/manual/RecorderWindowRecordingProperties.html",
      "note": "Unity Recorder 5.1 Recording session properties (live); Unity Time.captureDeltaTime"
    },
    {
      "url": "https://docs.unity3d.com/ScriptReference/Time-captureDeltaTime.html",
      "note": "Unity Recorder 5.1 Recording session properties (live); Unity Time.captureDeltaTime"
    },
    {
      "url": "https://docs.unity3d.com/ScriptReference/Time-captureFramerate.html",
      "note": "Unity Recorder 5.1 Recording session properties (live); Unity Time.captureDeltaTime"
    },
    {
      "url": "https://docs.unity3d.com/Packages/com.unity.recorder@5.1/manual/RecordingTimelineTrack.html",
      "note": "Unity Recorder 5.1 Recording session properties (live); Unity Time.captureDeltaTime"
    },
    {
      "url": "https://docs.unity3d.com/Packages/com.unity.recorder@5.1/manual/RecorderAudio.html",
      "note": "Unity Recorder 5.1 Recording session properties (live); Unity Time.captureDeltaTime"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] Unity Recorder offers Constant playback (fixed interval between recorded frames, recommended for non-interactive content) and Variable playback (game-view timing); Time.captureDeltaTime advances game time at a fixed interval regardless of real time. The docs read do not state that Constant mode uses captureDeltaTime (producer note kept). · locator: Unity Recorder 5.1 Recording session properties (live); Unity Time.captureDeltaTime · source: https://docs.unity3d.com/Packages/com.unity.recorder@5.1/manual/RecorderMovie.html

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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