2022-08-19 20:40:39 -03:00
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{ config, pkgs, lib, ... }: {
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2022-08-13 14:25:32 -03:00
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# RNNoise is a noise supperssion neural network
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# Here we use it as a plugin for pipewire to create a virtual microphone
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config = {
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home.file = {
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".config/pipewire/pipewire.conf.d/99-input-denoising.conf".text = ''
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context.modules = [
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{ name = libpipewire-module-filter-chain
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args = {
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node.description = "Noise Canceling source"
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media.name = "Noise Canceling source"
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filter.graph = {
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nodes = [
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{
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type = ladspa
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name = rnnoise
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plugin = ${pkgs.rnnoise-plugin}/lib/ladspa/librnnoise_ladspa.so
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label = noise_suppressor_mono
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control = {
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"VAD Threshold (%)" 95.0
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"VAD Grace Period (ms)" 200
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"Retroactive VAD Grace (ms)" 100
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}
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}
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]
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}
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capture.props = {
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node.name = "capture.rnnoise_source"
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node.passive = true
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audio.rate = 48000
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}
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playback.props = {
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node.name = "rnnoise_source"
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media.class = Audio/Source
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audio.rate = 48000
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}
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}
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}
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]
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'';
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};
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};
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}
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