Add extra pulseaudio - jack bridge connections to allow jack routing for pulseaudio applications

extra-jack-pulse-connections.sh

#!/bin/bash

sources=(telegram zoom teams discord extra)
sinks=(telegram kodi zoom teams discord extra)
startTime=$(date +%s)

function capitalise() {
  echo $1 | sed -e "s/\b\(.\)/\u\1/g"
}

function start() {

  for sink in "${sinks[@]}"
  do
    # echo $(capitalise ${sink}) Sink
    pactl load-module module-jack-sink client_name="'$(capitalise ${sink})'" sink_name="${sink}" sink_properties="starttime=$startTime" connect=no > /dev/null
  done

  for source in "${sources[@]}"
  do
    # echo $(capitalise ${source}) Source
    pactl load-module module-jack-source client_name="'$(capitalise ${source}) '" source_name="${source}" source_properties="starttime=$startTime" connect=no > /dev/null
  done

  echo "Added extra PulseAudio connections"
}

function stop() {
  pactl list modules short | grep $startTime | cut -f1 | xargs -n 1 pactl unload-module

  echo "Removed extra PulseAudio connections"
}

# Kill sleep on any of these signals
trap '[[ $pid ]] && kill $pid' TERM INT HUP QUIT

start
sleep infinity & # Run infinite sleep in background
pid=$! # Save PID of sleep program
wait $pid # Wait for sleep to be killed by the trap
stop 

I ran into an issue where I'd get a lot of Failure: Module initialization failed lines when trying to run the script.
In sudo journalctl -f I saw that this was because pulseaudio was hitting the maximum number of files that it was allowed to keep open.
The solution was:

sudo nano /usr/lib/systemd/user/pulseaudio.service

In the section [Service] add al line that says:

LimitNOFILE=1024

Note: You can use a higher number than 1024 files if necessary.

Afterwards reload the file and restart pulseaudio:

systemctl --user daemon-reload
systemctl --user restart pulseaudio.service

DON'T run these commands with sudo. PulseAudio is a per-user service, hence the --user flag.