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data1701d (He/Him) @startrek.website

7d ago

FYI: Audio Crackling Bug with Pipewire 1.4.1 + FluidSynth in Debian Testing/Unstable and Work-Around

bugs.debian.org

#1100943 - pipewire: Sporadic audio crackling/distortion with pipewire 1.4.1-1 - Debian Bug report logs

In case anyone is using Debian Testing/Unstable and experiencing audio issues, I thought I'd share this.

Until the bugs get fixed, there are two workarounds:

Uninstall FluidSynth
Add systemctl --user restart pipewire to your session startup; this eliminates the problem.

As I want FluidSynth, I went with the latter.

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3 comments

Ubuntu had a general crackling issue introduced last year, an issue around a buffer size which I fixed by copying

/usr/share/pipewire/pipewire-pulse.conf
To ~/.config/pipewire
Uncomment

pulse.min.quantum = 128/48000
And increase to 512/48000. Restart.

systemctl --user restart wireplumber pipewire pipewire-pulse
Increase buffer until stuttering ends. Note this also introduces delay to audio.
Perhaps your issue is something similar? I wouldn’t blindly make these changes on your end, but maybe it’s something to search up on.
- Tried that already.
  Based on the report, this seems to be an actual bug - it was working fine for everyone before the update and only happens in the presence of FluidSynth.
  Ubuntu probably hasn't had this version of PipeWire yet.
  My work around is working just fine for now, though.
- This is what fixed my ubuntu audio stuttering too