Loading Pulse Audio Modules

[kostas-politis]

I developed a solution for audio quality assessment in e2e automation environments which heavily relies on loading certain Pulse Audio modules for creating Virtual Audio Speakers and Cables.

In a standard Linux environment I would do the following:

# Create Virtual Sink
pactl load-module module-null-sink sink_name=virtual.speaker.1 rate=48000 channel_map=mono
# Create Virtual Sink whose monitor will source Virtual Microphone 
pactl load-module module-null-sink sink_name=virtual.mic.1.source rate=48000 channel_map=mono
# Create Virtual Microphone
pactl load-module module-remap-source source_name=virtual.microphone.1 rate=48000 

Now a process could be lunched the following way to use these virtual audio devices:

PULSE_SOURCE=virtual.microphone.1 PULSE_SINK=virtual.speaker.1 ./chrome

At my workplace, everyone has to standard Windows/WSL setup and whilst the following works fine in bare linux, this is not the case here. I installed pulseaudio-utils and loaded the modules in WSL as described in the snippet above. The sinks and sources will be present upon running pactl list sources and pactl list sinks, but after 2 minutes they vanish. Tried with all debian, ubuntu, openSUSE distros. Is there a way to properly load those in wslg pulse audio?