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audio

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caem 2025-01-28 20:22:07 +01:00
parent 5c60d76735
commit 6b4af4c79e
Signed by: caem
GPG key ID: 69A830D03203405F
1 changed files with 18 additions and 12 deletions
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30
modules/nixos/hardware/audio/default.nix
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@ -1,6 +1,7 @@
{ ... }: { ... }:
{ {
boot.kernelParams = [ "preempt=full" ];
security.rtkit.enable = true; security.rtkit.enable = true;
services.pipewire = { services.pipewire = {
enable = true; enable = true;
@ -13,13 +14,19 @@
# Reduce latency # Reduce latency
# https://wiki.nixos.org/wiki/PipeWire#Low-latency_setup # https://wiki.nixos.org/wiki/PipeWire#Low-latency_setup
extraConfig = { extraConfig = let
rate = 48000;
# The default value in the wiki is 32 but might result in crackling audio.
# If you get audio crackling try increasing this value until it's gone.
quantum = 32;
in {
pipewire."92-low-latency" = { pipewire."92-low-latency" = {
"context.properties" = { "context.properties" = {
"default.clock.rate" = 48000; "default.clock.rate" = ${rate};
"default.clock.quantum" = 32; "default.clock.quantum" = ${quantum};
"default.clock.min-quantum" = 32; "default.clock.min-quantum" = ${quantum};
"default.clock.max-quantum" = 32; "default.clock.max-quantum" = ${quantum};
}; };
}; };
@ -31,18 +38,17 @@
} }
]; ];
"pulse.properties" = { "pulse.properties" = {
"pulse.min.req" = "32/48000"; "pulse.min.req" = "${quantum}/${rate}";
"pulse.default.req" = "32/48000"; "pulse.default.req" = "${quantum}/${rate}";
"pulse.max.req" = "32/48000"; "pulse.max.req" = "${quantum}/${rate}";
"pulse.min.quantum" = "32/48000"; "pulse.min.quantum" = "${quantum}/${rate}";
"pulse.max.quantum" = "32/48000"; "pulse.max.quantum" = "${quantum}/${rate}";
}; };
"stream.properties" = { "stream.properties" = {
"node.latency" = "32/48000"; "node.latency" = "${quantum}/${rate}";
"resample.quality" = 1; "resample.quality" = 1;
}; };
}; };
}; };
}; };
} }