[alsa-devel] Open source UAC2 sound card for UAC2 driver testing

[Daniel Mack]

On Wed, Jun 09, 2010 at 02:00:24PM +0000, Alex Lee wrote:
> We are developing an open source high speed USB sound card.  Please see:
> 
> http://code.google.com/p/sdr-widget/
> 
> for details.
> 
> With the alpha-1 hardware, we are doing development and testing of the UAC2
> firmware against the latest alsa driver here.  We have already demonstrated
> 96khz 24bit stereo capture with UAC2 and we will proceed to 192khz soon.
> 
> Alpha-1 has an ENOB of at least 20 and we hope alpha-2 will have an ENOB of 22
> or better.  Alpha-2 kits are available for order now.  (Note that these are
> prototype kits for experimenters only.)
> 
> With both the UAC2 driver and the sound card firmware being open source, we hope
> to expedite full UAC2 spec compliance.  We are already working closely with
> Daniel Mack on the testing.

Alex also found two minor bugs in the UAC2 part of the driver which I
already fixed in my tree. I'm planning to release a set of patches later
this week.

Daniel