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Audio glitching in Chrome when Blender is open
Needs Triage, NormalPublic

Description

System Information
Operating system: MacOS 10.15.7
Graphics card: Intel UHD 630

Blender Version
Broken: 2.83-2.91
Worked: (unknown)

Short description of error
Audio in Chrome, e.g. YouTube or Spotify, will crackle/glitch/click when Blender is open and set to output audio, even on an empty project with no plugins. Setting the audio device to Null in preferences fixes it immediately.

I think this is a buffering issue as it's the kind of noise I associate with buffer underruns.

Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).

  1. Open default startup
  2. Play music on YouTube or Spotify in Chrome browser
  3. By 30s or so, there will have been at least one audible crackle, perhaps half a dozen
  4. Changing from OpenAL to SDL will not fix it, but changing to Null will

Event Timeline

Happy to dig into this further, it's not really an area I know much about yet, so I've raised a ticket in case it's obvious or unreproducible by others.