On Mon, 2011-11-21 at 04:19 +0100, David Henningsson wrote: > On 11/20/2011 11:24 AM, Tanu Kaskinen wrote: > > AFAIK USB doesn't have enough > > bandwidth to support uncompressed 8-channel audio, > > Hmm, a long time ago - this was on Windows XP - I remember using a > http://www.esi-audio.com/products/gigaportag/ and I don't think we > installed any special USB drivers for that. > > 8 channels * 48000 Hz * 16 bit ~ 6 MBit/s, and we're talking about the > 12 MBit/s version here, so I guess it should be enough even with some > packet overhead, but maybe some of the more broken USB host chips have > some problems with it? Ok, apparently my memory is coming up with random stuff. I have a pretty strong recollection that there was *some* pretty significant limitation with what USB 2.0 sound cards can do, and I was pretty sure it was related to bandwidth. But with max bandwidth of 480 Mbit/s, audio use cases are pretty trivial... -- Tanu
