PulseAudio: Difference between revisions
imported>Cluxter Add sections about loading modules and about Bauer stereophonic-to-binaural DSP library (bs2b) |
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PulseAudio is a popular sound server for Linux. | PulseAudio is a popular sound server for Linux. A number of applications now expect a PulseAudio-compatible audio server. | ||
As of NixOS 24.11, [[PipeWire]] is used over PulseAudio for most graphical sessions by default, but it can provide a PulseAudio-compatible server (see that page for more details). This page documents how to use "native" PulseAudio as an alternative. | |||
==Enabling PulseAudio== | ==Enabling PulseAudio== | ||
Add to your configuration: | Add to your configuration: | ||
< | <syntaxhighlight lang="nix"> | ||
services.pipewire.enable = false; | |||
services.pulseaudio.enable = true; | |||
</ | services.pulseaudio.support32Bit = true; # If compatibility with 32-bit applications is desired. | ||
</syntaxhighlight> | |||
You may need to add users to the <tt>audio</tt> group for them to be able to use audio devices: | You may need to add users to the <tt>audio</tt> group for them to be able to use audio devices: | ||
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Or automatically: | Or automatically: | ||
<syntaxHighlight lang="nix"> | <syntaxHighlight lang="nix"> | ||
services.pulseaudio.extraConfig = "load-module module-combine-sink"; | |||
</syntaxHighlight> | </syntaxHighlight> | ||
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<syntaxHighlight lang="nix"> | <syntaxHighlight lang="nix"> | ||
services.pulseaudio.extraConfig = "unload-module module-suspend-on-idle"; | |||
</syntaxHighlight> | </syntaxHighlight> | ||
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<syntaxHighlight lang="nix"> | <syntaxHighlight lang="nix"> | ||
services.pulseaudio.package = pkgs.pulseaudioFull; | |||
</syntaxHighlight> | </syntaxHighlight> | ||
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To turn timer-based scheduling off add this to your configuration: | To turn timer-based scheduling off add this to your configuration: | ||
<syntaxHighlight lang="nix"> | <syntaxHighlight lang="nix"> | ||
services.pulseaudio.configFile = pkgs.runCommand "default.pa" {} '' | |||
sed 's/module-udev-detect$/module-udev-detect tsched=0/' \ | sed 's/module-udev-detect$/module-udev-detect tsched=0/' \ | ||
${pkgs.pulseaudio}/etc/pulse/default.pa > $out | ${pkgs.pulseaudio}/etc/pulse/default.pa > $out | ||
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Then perform <code># nixos-rebuild switch</code>, followed by <code>$ pulseaudio -k</code>. | Then perform <code># nixos-rebuild switch</code>, followed by <code>$ pulseaudio -k</code>. | ||
The difference should be directly noticeable. This is a known issue related to quality of Creative driver [https://guh.me/solving-creative-sound-blaster-x-fi-titanium-crackling-slash-distortion-on-linux], but it can also happen with other sound cards. | The difference should be directly noticeable. This is a known issue related to quality of Creative driver [https://guh.me/posts/2013-06-16-solving-creative-sound-blaster-x-fi-titanium-crackling-slash-distortion-on-linux/], but it can also happen with other sound cards. | ||
=== Paprefs doesn't work on KDE === | === Paprefs doesn't work on KDE === | ||
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==See also== | ==See also== | ||
* [[Using JACK with PulseAudio]] | * [[Using JACK with PulseAudio]] | ||
* [[PipeWire]] | |||
[[Category:Audio]] | [[Category:Audio]] | ||