[X2Go-User] Can't use microphone in x2goclient on MacOS

[Julián Metelski]

Hello. I hope I'm in the right place (otherwise please tell me where to 
go, thanks!)

I have a Linux x2go server with several x2go clients connecting to it, 
all but one run on windows (where I already know my way around and have 
successfully troubleshooted several issues), and one running on MacOS 
Monterrey 12.5.-

The problem I have with this client is I can't get microphone sound to 
reach the x2goserver. I can receive audio in the mac, and in Linux 
(pavucontrol) I see the microphone being listed, it's enabled and 
selected and it's not muted, but when I speak I get no sound. In the 
Mac's sound configuration I see the vumeter move when I speak, and I can 
record audio in other MacOS applications (for example if I go to 
www.onlinemictest.com on Safari, the mic works).

I didn't find any program or tool to select which stream each 
application records (like pavucontrol on Linux).

Any help is appreciated. Thanks!!
Julian