I have found a paper by Harry W3YJ describing how to connect the rig's audio to NoMachine.
I have got it sort of work. But I would like to be able to share this between my two rigs (IC-7300 and IC-705).
At the moment to switch the audio connections I have to:
Kill pulseaudio.
Log off and back on again.
Run the script.
Disconnect NoMachine and reconnect it (to pick up the changed default sink and source).
Run the script again.
That's not the impression I got from Harry's paper.
73 Phil GM3ZZA
Philip Rose, GM3ZZA