These are configurable at the moment in ~/.config/Mumble/Mumble.conf for JACK.
[jack]
output=1 # or 2 (mono/stereo)
autoconnect=true # or false
startserver=true # or false
As is Mumble now connects to the default system ports (likely your dry mic input and speaker/headphoes) but it's very likely you have plugin ports you'd rather have mumble connect to instead.
Maybe a compressor or equalizer at the end of your plugin chain.
Currently it's necessary to do these connections manually or via a jack_connect script after mumble starts.
Options for specific capture and playback ports seem easy to support.
Yes, and it would be awesome, is that a goal at some point?
also, could we have stereo input?
Yes, we will modify the GUI so that it will expose backend-specific settings.
As for stereo audio transmission, see #2829.
As a temporary work-around you can use the qjackctl patchbay to automatically connect to the correct ports.
Most helpful comment
Yes, we will modify the GUI so that it will expose backend-specific settings.
As for stereo audio transmission, see #2829.