Add setup-noise-suppression

Signed-off-by: Florian Pritz <bluewind@xinu.at>

1 files changed, 21 insertions, 0 deletions

diff --git a/setup-noise-suppression b/setup-noise-suppression
new file mode 100755
index 0000000..699ca42
--- /dev/null
+++ b/setup-noise-suppression
@@ -0,0 +1,21 @@
+#!/bin/bash
+#
+# Set up rnnoise-based microphone noise filtering
+#
+# - Install the ladspa noise-suppression plugin form here: https://github.com/werman/noise-suppression-for-voice
+# - Then use this script to play around with the settings until you have something that works well.
+#    + Find potential sources with: pacmd list-sources | awk -F'[<>]' '/name: /{print $2}'
+# - Finally, put the "load-module *" lines into your /etc/pulse/default.pa for persistence.
+
+source="$1"
+control="${2:-40}"
+channels="${3:-2}"
+
+pacmd unload-module module-null-sink
+
+pacmd load-module module-null-sink sink_name=mic_denoised_out rate=48000 format=s16le
+pacmd load-module module-ladspa-sink sink_name=mic_raw_in sink_master=mic_denoised_out label=noise_suppressor_mono plugin=/usr/lib/ladspa/librnnoise_ladspa.so control="$control"
+pacmd load-module module-loopback source="$source" sink=mic_raw_in channels="$channels" source_dont_move=true sink_dont_move=true latency_msec=1
+
+# remap to regular source for chromium
+pacmd load-module module-remap-source source_name=denoised master=mic_denoised_out.monitor channels="$channels"