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Pulseaudio "cracking" underruns after several hours of ...
https://github.com/QubesOS/qubes-issues/issues/2905
Uninstalling pulseaudio-equalizer and editing /etc/pulse/daemon.conf to have a slightly bigger buffer (default-fragments=4 and default-fragment-size-msec=60) has reduced the clicking very appreciably for me, about 2-3 clicks per hour (every time a click happens, log fills with "underrun" and "rewind" messages, so the issue persists, just at a less obnoxious rate)
All sounds that come out of wine are distorted with buffer ...
https://askubuntu.com/questions/124602/all-sounds-that-come-out-of-wine-are-distorted-with-buffer-underruns
There are sounds being made but they come extremely stuttered and unusable. Please let me know if there's anything I can do to give you more information but I'm pretty sure the problem is from buffer underrun errors. I don't really know what those are or how to deal with them but I've seen that in debug output most of the time I'm having issues.
The forum - PlayOnLinux - Run your Windows …
https://www.playonlinux.com/en/topic-11545-Pulseaudio_qbuffer_underrunq_tutorial.html
My "buffer underrun" errors are gone, but performance in PlayOnLinux games are still poor. I have tried several solutions and its still not working in Mint 16 32-bit which uses Pulseaudio 4. I tried the tutorial, wine's suggestions, editing daemon.conf and even a custom .asoundrc script, but nothing works.
209843 – Buffer underrun from ALSA to pulseaudio using snd ...
https://bugzilla.kernel.org/show_bug.cgi?id=209843
Kernel.org Bugzilla – Bug 209843 Buffer underrun from ALSA to pulseaudio using snd_bcm2835 on raspberry pi 4 Last modified: 2020-12-22 17:07:03 UTC
[SOLVED] '(snd_pcm_recover) underrun occurred' / Kernel ...
https://bbs.archlinux.org/viewtopic.php?id=185736
Posts: 1,570. Re: [SOLVED] ' (snd_pcm_recover) underrun occurred'. Pulseaudio has settings similar to alsas buffer_size, increase those. Refrain from using outside guides without understanding what you are actually doing, you probably should default your configuration for pulseaudio first, before attempting anything else.
PulseAudio: pa_buffer_attr Struct Reference
https://freedesktop.org/software/pulseaudio/doxygen/structpa__buffer__attr.html
Should underrun occur, the read index of the output buffer overtakes the write index, and hence the fill level of the buffer is negative. Start of playback can be forced using pa_stream_trigger () even though the prebuffer size hasn't been reached. If a buffer underrun occurs, this prebuffering will be again enabled. tlength
PulseAudio: Audio Streams - freedesktop.org
https://freedesktop.org/software/pulseaudio/doxygen/streams.html
In case of a buffer underrun the read index is equal or larger than the write index. Unless the prebuf value is 0, PulseAudio will temporarily pause playback in such a case, and wait until the buffer is filled up to prebuf bytes again. If prebuf is 0, the read index may be larger than the write index, in which case silence is played.
Audio issues in Wine : linuxquestions
https://www.reddit.com/r/linuxquestions/comments/22g08x/audio_issues_in_wine/
Could be a symptom of bad buffer management and the Realtek ALC889 has had some reported issues with that. '/usr/bin/amixer -c 0 sset "Auto-Mute Mode" Disabled' will disable it, if that helps you can add it to /etc/rc.local to run that on boot. If you haven't already, you can try toggling PulseAudio's scheduling method between interrupts and timers.
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