Audio normalizer?

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For PulseAudio remap to mono see this post from Sep '22

forum.manjaro.org - Method to force mono audio?

To remap stereo audio to mono in PulseAudio

  1. Get the name of the default sink used for audio playback

    pactl get-default-sink

  2. Create a file in user home folder for custom PulseAudio configuration with a text editor

    sudo nano ~/.config/pulse/default.pa

  3. Copy & paste this text into text editor

    .include /etc/pulse/default.pa

# Remap stereo to mono
load-module module-remap-sink master=[default-sink] sink_name=mono sink_properties="device.description='Mono'" channels=2 channel_map=mono,mono
# Optional: Select new remap as default
set-default-sink mono

    Replace [default-sink] with name of default-sink from 1.

  4. Save configuration file Ctrl + O and quit nano Ctrl + X

  5. Restart Pulseaudio:

    systemctl --user restart pulseaudio

( based on: PulseAudio/Examples/Remap stereo to mono - ArchWiki )

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