From time to time, I have the need to route the audio from a separate sound card or source to my audio output, simply to hear the output and nothing else. I could open up a DAW for this, but it seems a little overkill.
This OS X application and Max patch simply takes audio from an audio device and routes it to the output of another audio device. Faders set the level between input and output.
The use is very simple - use the setup button to choose your input and output source, and set the audio to on. Set the levels with the faders.
Download the OS X application for the two channel version here:
Download the OS X application for the eight channel version here:
Download the original Max patch here: