So I have a podcast and we recently upgraded to an audio interface. focusrite 18i8. Previously our audio was merged into 1 channel with our Behringer mixer but now I have 5 channels. 3 mono mics and an input from 3.5mm from the computer for what I believe is a total of 5 channels.

Youtube's streaming server seems to only recognize 2 inputs, so the 3rd mix and the computer are totally silent on the broadcast.

I need a software or something that will let me record on individual input tracks (using adobe audition) and pipe it through something so that its combined into a single input for Google Hangouts (youtube).

Any suggestions. I'm broadcasting tomorrow and feeling desperate.