Most of USB audio devices out there are basic stereo in // stereo out and they can do up to 48kHz sampling rate.
What you need is USB audio 2.0, which is firly recent, despite the fact that most of other USB devices use the capabilities of 2.0 standard, the audio products didn't catch up just yet.
There very few implementation out there, if you find any thing decent - let every one know! I haven't looked it up very recently, so there may be something already :) The latest ALSA driver should have quite good support for it, I would advise you to browse ALSA dveloper's mailing list.
for example I can see from back in August: "[alsa-devel] Problem with USB Class 2 Audio Driver"
Good Luck,
Ilya
On Thu, Nov 18, 2010 at 09:42:51PM +0100, Carlo Benzi wrote:
Hi! I have a question: is there a USB multichannel interface (for example 8 in - 8 out) running under ubuntustudio or studio64 (processor: Intel Pentium M 740 with 1 GB ram)? I'd like to buy it in order to use Pure Data with this equipment. Thanks a lot for your help! Best greetings Carlo
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