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fix: improve voice quality and add distortion troubleshooting

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- Fix RNNoise configuration: use mono instead of stereo, increase VAD threshold to 95%
- Adjust quantum settings: increase min-quantum to 64 for stability
- Add comprehensive voice distortion troubleshoot script
- Create optional disable-auto-rnnoise.nix for problematic setups
- The automatic RNNoise filter can cause artifacts, script helps diagnose and fix
This commit is contained in:
Geir Okkenhaug Jerstad 2025-06-18 21:46:31 +02:00
parent 52a9d544fc
commit 406acb3daf
3 changed files with 318 additions and 5 deletions
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13
modules/sound/pipewire.nix
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@ -24,8 +24,8 @@
"context.properties" = {
"default.clock.rate" = 48000;
"default.clock.quantum" = 1024;
"default.clock.min-quantum" = 32;
"default.clock.max-quantum" = 2048;
"default.clock.min-quantum" = 64;
"default.clock.max-quantum" = 8192;
};
"context.modules" = [
@ -40,10 +40,10 @@
type = "ladspa";
name = "rnnoise";
plugin = "${pkgs.rnnoise-plugin}/lib/ladspa/librnnoise_ladspa.so";
label = "noise_suppressor_stereo";
label = "noise_suppressor_mono";
control = {
"VAD Threshold (%)" = 50.0;
"VAD Grace Period (ms)" = 200;
"VAD Threshold (%)" = 95.0;
"VAD Grace Period (ms)" = 100;
"Retroactive VAD Grace (ms)" = 0;
};
}
@ -84,6 +84,9 @@
# Validation script
(writeShellScriptBin "validate-audio" (builtins.readFile ./validate-audio.sh))
# Troubleshoot script for voice distortion
(writeShellScriptBin "troubleshoot-voice-distortion" (builtins.readFile ./troubleshoot-voice-distortion.sh))
# Optional: Professional audio tools
# qjackctl # JACK control GUI (for JACK applications)