So there is my problem:
I want to use a software to send sound to server (using a stereo mix like) and it work, but i need to change my mic to speak or to use the soft and it take much time.
Is it possible to put a key and when i press it, it change my mic?
Using another software or inside mumble but i didn't found what i want, i think is possible to do it because i know how to do it on teamspeak.
(I think i found how to do it : With a soft who change my default soundcard with hotkeys)