audio-conf

#! /bin/bash

# 2022-04-01 11:44:22 UTC
# Load the TCP module to allow other local users to use audio devices
# Change the default sampling rate to 48KHz
# Enable more allowed sampling rates

# https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/Config-PulseAudio#module-native-protocol-tcp
# "auth-ip-acl=127.0.0.1;192.168.1.0/24;::1" https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/847#note_828707
# "listen=127.0.0.1;192.168.0.100;::1"       https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/2259
#
# 2022-04-04 11:44:29 UTC
# + module-x11-bell : /usr/share/sounds/freedesktop/stereo/bell.oga in sound-theme-freedesktop
# 2022-12-22 10:27:26 UTC
# + module-combine-sink : output to all enabled devices simultaneously (that's an output virtual "combined" device)
# 2022-12-30 09:29:33 UTC
# - module-combine-sink : wireplumber makes it default all the time and that fucks up volume management

declare -A opts
opts[module-native-protocol-tcp]="listen=127.0.0.1"
opts[module-combine-sink]="sink_name=CombinedVirtual"

for i in module-native-protocol-tcp module-x11-bell; do # module-combine-sink
    if [ -z "`pactl list modules | grep $i`" ]; then
        echo -n "Loading $i ... "
        pactl load-module $i ${opts[$i]} && echo OK
    else
        echo "$i is already loaded"
    fi
done

# https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/Config-PipeWire
# Get settings: `pw-metadata -n settings`

if ! which pw-metadata &> /dev/null; then
    echo "Error: 'pw-metadata' is missing, please install pipewire-utils"
    exit 1
fi

echo "Setting extra options ... "
pw-metadata -n settings 0 clock.rate 48000
pw-metadata -n settings 0 clock.allowed-rates '[ 48000, 96000, 44100 ]'