Add a noise suppressed microphone

config/pipewire/pipewire.conf.d/50-blob-noise-suppression.conf

@@ -0,0 +1,35 @@
+context.modules = [
+  {
+    name = libpipewire-module-filter-chain
+    flags = [ nofail ]
+    args = {
+      node.description = "Noise Suppressed Microphone"
+      media.name = "Noise Suppressed Microphone"
+      filter.graph = {
+        nodes = [
+          {
+            type = ladspa
+            name = rnnoise
+            plugin = /usr/lib/ladspa/librnnoise_ladspa.so
+            label = noise_suppressor_mono
+            control = {
+              "VAD Threshold (%)" = 50.0
+              "VAD Grace Period (ms)" = 200
+              "Retroactive VAD Grace (ms)" = 0
+            }
+          }
+        ]
+      }
+      capture.props = {
+        node.name = "capture.blob_noise_suppression"
+        node.passive = true
+        audio.rate = 48000
+      }
+      playback.props = {
+        node.name = "blob_noise_suppression"
+        media.class = Audio/Source
+        audio.rate = 48000
+      }
+    }
+  }
+]