[theGuillaume]

So I plug in my mic in the mic input, I get sound alright but whenever I play a track in XBMC, the mic input get muted. When I stop the track in XBMC, the sound of the microphone comes back. How to I get the microphone sound while I play a Karaoke track in XBMC?

[Ned Scott]

Depends. What OS are you using?

[theGuillaume]

Win 7 Ultimate.
XBMC Audio output is Optical/Coax, 5.1 (WASAPI: Realtek Digital Output(Optical) (Realtek High Definition Audio))
Connected to a 5.1 receiver.