Audio stutters when using Viper4Linux
- PipeWire version (
pipewire --version): 0.3.42 & also master 8416d66a - Distribution and distribution version (
PRETTY_NAMEfrom/etc/os-release): EndeavourOS (vm) & Debian testing (real hardware) (same behaviour on both) - Desktop Environment: Xfce and KDE Plasma
- Kernel version (
uname -r): 5.15
Description of Problem:
Hi, when using Viper4Linux for audio processing / effects, there are gaps in audio output which makes it very unpleasant to listen to.
Steps to Reproduce:
- Install Viper4Linux and its GUI (on Arch systems, from AUR:
yay -S viper4linux-gui- for other see the repo: https://github.com/Audio4Linux/Viper4Linux-GUI) - Start viper in command line:
viper start - Launch the Viper4Linux GUI
- Make sure FX is enabled and audio output is going through viper
- Try to not get sad while listening to music
Actual Results:
Audio output seems to have some gaps, music 'stutters' in a unpleasant way.
Expected Results:
Audio output should be normal without stutters.
Additional Info:
-
pw-dump > pw-dump.log:pw-dump.log - audio demo: viper-pipewire-stutter
Noticed that the viper gst plugin seems to run on fixed 44.1k samplerate, even if everything else is on 48k. Haven't found a way to change this. However when forcing pipewire to run everything else also on 44.1k samplerate (command: pw-metadata -n settings 0 clock.force-rate 44100) this makes the stutter appear much less. Setting samplerate back to auto or 48k is like a big comeback party for the stuttering.
Also, looking at pw-mon, the viper gst plugin runs at very weird latency values. Maybe this or compensation for this has something to do with the problem:
