Solved
{ config, pkgs, ... }:
let
json = pkgs.formats.json {};
pw_rnnoise_config = {
"context.modules"= [
{ "name" = "libpipewire-module-filter-chain";
"args" = {
"node.description" = "Noise Canceling source";
"media.name" = "Noise Canceling source";
"filter.graph" = {
"nodes" = [
{
"type" = "ladspa";
"name" = "rnnoise";
"plugin" = "${pkgs.rnnoise-plugin}/lib/ladspa/librnnoise_ladspa.so";
"label" = "noise_suppressor_stereo";
"control" = {
"VAD Threshold (%)" = 50.0;
};
}
];
};
"audio.position" = [ "FL" "FR" ];
"capture.props" = {
"node.name" = "effect_input.rnnoise";
"node.passive" = true;
};
"playback.props" = {
"node.name" = "effect_output.rnnoise";
"media.class" = "Audio/Source";
};
};
}
];
};
in
{
environment.etc."pipewire/pipewire.conf.d/99-input-denoising.conf" = {
source = json.generate "99-input-denoising.conf" pw_rnnoise_config;
};
}