Add pulseaudio noisegate

machines/cadmium/configuration.nix

@@ -15,6 +15,7 @@
       ../../autologin.nix
       ../../lxc.nix
       ../../obs.nix
+      ../../pulseaudio.nix
     ];
 
   hardware.cpu.intel.updateMicrocode = true;
@@ -113,20 +114,7 @@
   programs.gnupg.agent = {
      enable = true;
      pinentryFlavor = "gnome3";
-  };
-
-  sound.enable = true;
-  hardware.pulseaudio.enable = true;
-  hardware.pulseaudio.extraModules = [
-    pkgs.pulseaudio-modules-bt
-  ];
-
-  #hardware.pulseaudio.extraConfig = ''
-  #        load-module module-echo-cancel source_name=noechosource sink_name=noechosink
-  #'';
-  #load-module module-loopback
-  #set-default-source noechosource
-  #set-default-sink noechosink
+   };
 
   hardware.bluetooth.enable = true;
   services.blueman.enable = true;

pkgs/tap-plugins/default.nix

@@ -0,0 +1,32 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, patchelf
+, pkgs
+}:
+
+stdenv.mkDerivation rec {
+  pname = "tap-plugins";
+  version = "1.0.1";
+
+
+# nix-prefetch-github tomszilagyi tap-plugins --rev v1.0.1
+  src = fetchFromGitHub {
+    owner = "tomszilagyi";
+    repo = "tap-plugins";
+    rev = "v${version}";
+    sha256 = "0c6qhyf8smlypc36vmpr42dm3mrzk6pg9cc9r0vx22qbrd5zfpjw";
+  };
+
+  nativeBuildInputs = [
+    patchelf
+  ];
+
+  installPhase = ''
+    runHook perInstall
+
+    make install INSTALL_PLUGINS_DIR=$out/lib/ladspa INSTALL_LRDF_DIR=$out/share/ladspa/rdf
+
+    runHook postInstall
+  '';
+}

pulseaudio.nix

@@ -0,0 +1,16 @@
+{ config, lib, pkgs, ... }:
+
+let
+  tap-plugins = pkgs.callPackage pkgs/tap-plugins/default.nix {};
+  enable_bluetooth = config.hardware.bluetooth.enable;
+in {
+  sound.enable = true;
+  hardware.pulseaudio = {
+    enable = true;
+    extraModules = if enable_bluetooth then [pkgs.pulseaudio-modules-bt] else [];
+  };
+
+  systemd.user.services.pulseaudio.environment = {
+    LD_LIBRARY_PATH = "${tap-plugins}/lib/ladspa";
+  };
+}