Is it possible to do the audio capture and playback simultaneously?

In short :
Is it possible to do the audio capture and playback simultaneously? . If it is not supported directly by Sun, pl suggest another way to achieve the same.
In detail:
I am doing a voice chat application by using the streaming through UDP . I am able to play the byte stream. But , is it possible to capture sound simultaneously (while playing the audio) to send to the other end?
Edited by: dhillarun on Jan 4, 2008 7:11 AM

If you're Airplaying from you computer, you might be able to do this. Here's what I would try:
Go to the Airplay icon in iTunes. You should see both your Apple TV and your speakers listed as options. Select "Multiple speakers." You'll see both devices together. Turn the volume all the way down on the Apple TV. You should be getting the video on the TV, but only hear audio through the speakers.
Using the "Multiple Speakers" option will sync the output of your devices so that the sound matches the picture.
I haven't tried this myself, but I'm thinking this would work. However, this approach will only work when using Airplay from your computer – not from am iPad or iPhone – as they don’t have the "Multiple Speakers" option (as far as I know). It also won't work with content streamed directly to your ATV, obviously, because there's no way to stream from ATV to other devices.
Let me know if this works.

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