Re: [Bisected] ALSA: snd-usb: New streaming logic causes distortions on Burr-Brown DAC

Takashi Iwai
2012-06-09T07:05:13Z

At Fri, 8 Jun 2012 20:11:54 +0200,
Markus Trippelsdorf wrote:
>
> On 2012.06.08 at 17:50 +0000, Jamie Heilman wrote:
> > Markus Trippelsdorf wrote:
> > > I hear distortions on my Burr-Brown USB DAC whenever the (software)
> > > volume is set to some value lower than 100% in mpd. The lower the volume
> > > the bigger are the resulting distortions.
> >
> > see patch: http://marc.info/?l=linux-kernel&m=133905533312625&w=2
> >
> > You're probably getting distortion because mpd decided it would use
> > a stream format that's only 8bit.
>
> Yes. The patch fixes the issue. Many thanks.

The patch is already in sound git tree, but missed in rc2.
It should be in rc3.

thanks,

Takashi