feat(pipewire): setup rnnoise plugin.

modules/linux/home-manager/pipewire.nix

@@ -1,15 +1,56 @@
 {
   config,
+  pkgs,
   lib,
   ...
-}: {
+}: let
+  inherit (pkgs) rnnoise-plugin;
+in {
   options = {
     crony.pipewire.enable = lib.mkEnableOption "Setup some config files for my pipewire/wireplumber setup.";
   };
 
   config = lib.mkIf config.crony.pipewire.enable {
-    home.file = {
+    xdg.configFile."pipewire/pipewire.conf.d/99-rnnoise.conf" = {
-      ".config/pipewire" = {source = ./configs/pipewire;};
+      text = builtins.toJSON {
+        "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 = "${rnnoise-plugin}/lib/ladspa/librnnoise_ladspa.so";
+                    label = "noise_suppressor_mono";
+                    control = {
+                      "VAD Threshold (%)" = 80.0;
+                      "VAD Grace Period (ms)" = 200;
+                      "Retroactive VAD Grace (ms)" = 0;
+                    };
+                  }
+                ];
+              };
+
+              "capture.props" = {
+                "node.name" = "capture.rnnoise_source";
+                "node.passive" = true;
+                "audio.rate" = 48000;
+              };
+
+              "playback.props" = {
+                "node.name" = "rnnoise_source";
+                "media.class" = "Audio/Source";
+                "audio.rate" = 48000;
+              };
+            };
+          }
+        ];
+      };
     };
   };
 }