[alsa-devel] Need expert's advice - Fast Track Ultra (8R) dropping samples

Clemens Ladisch clemens at ladisch.de
Thu Oct 7 08:37:22 CEST 2010

Felix Homann wrote:
> Am 06.10.2010 16:38, schrieb Clemens Ladisch:
> > this device does not use frequency feedback.
> >
> > What happens when you are recording something and then try to play
> > something else with a different sample rate?
> When I start recording at 44.1 kHz while playing a wav at 48 kHz the
> playback gets very distorted, sounds like lots of missing samples.

So this device expects the computer to take the sample clock from the
capture data.   This is just like the UA-101; it should be possible to
write a similar driver (with opportunities for code sharing, and AFAIK
UAC 2 requires such a feedback mode, too).


More information about the Alsa-devel mailing list