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Diffstat (limited to 'users/tazjin/nsfv-setup/default.nix')
| -rw-r--r-- | users/tazjin/nsfv-setup/default.nix | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/users/tazjin/nsfv-setup/default.nix b/users/tazjin/nsfv-setup/default.nix new file mode 100644 index 0000000000..65f94034da --- /dev/null +++ b/users/tazjin/nsfv-setup/default.nix @@ -0,0 +1,18 @@ +# Configures a running Pulseaudio instance with an LADSP filter that +# creates a noise-cancelling sink. +# +# This can be used to, for example, cancel noise from an incoming +# video conferencing audio stream. +# +# There are some caveats, for example this will not distinguish +# between noise from different participants and I have no idea what +# happens if the default sink goes away. +{ pkgs, ... }: + +let + inherit (pkgs) ripgrep pulseaudio nsfv; +in pkgs.writeShellScriptBin "nsfv-setup" '' + SINK=$(${pulseaudio}/bin/pacmd info | ${ripgrep}/bin/rg -r '$1' '^Default sink name: (.*)$') + echo "Setting up NSFV filtering to sink ''${SINK}" + ${pulseaudio}/bin/pacmd load-module module-ladspa-sink sink_name=NSFV sink_master=''${SINK} label=noise_suppressor_stereo plugin=${pkgs.nsfv}/lib/ladspa/librnnoise_ladspa.so control=50 +'' |