Yes well absolutely the case. As the two can work together to solve any prblems with data rates etc. The BardUSB has less than 1ms latency and hence will work with the video in real time. Also allowing the video more bandwidth on its own. Or have I misjudged this? Is the audio suddenly too fast? On the MAC, if i am not mistaken, you can select teh audio device you wish to use. You then simply chose the USB device and presto.
Anyway its an idea.