hi, i need to route the audio out of different software (e.g. browser, audio player) through different channels of my soundcard (rme babyface). but i can't find suitable audio players, they all seem to use ch 1+2 with no option to select other playback channels. which audio player for OSX supports multi channel soundcards?
Have you tested out using Cycling 74's Soundflower? Not exactly what you're asking for, but it might provide a useful (free) solution for you.