Re: Steinberg UR22 Crackling and Clicks

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On Tue, 08 Dec 2020 21:53:14 +0100,
meschi@xxxxxxxxx wrote:
> 
> 
> 
> Am 08.12.2020 21:23 schrieb Takashi Iwai:
> > On Tue, 08 Dec 2020 20:41:33 +0100,
> > meschi@xxxxxxxxx wrote:
> >>
> >>
> >>
> >> Am 08.12.2020 15:57 schrieb Takashi Iwai:
> >> > On Tue, 08 Dec 2020 15:50:28 +0100,
> >> > meschi@xxxxxxxxx wrote:
> >> >>
> >> >> > It's likely the issues with the implicit feedback.
> >> >> >
> >> >> > The latest development tree (either linux-next tree or
> >> >> > topic/usb-audio-refactoring branch of my sound.git tree) contains the
> >> >> > improvements of the implicit feedback mode.
> >> >> >
> >> >> >
> >> >> > Takashi
> >> When I try to play a file now this happens:
> >> $ aplay -D plughw:CARD=UR22 ./file.wav
> >> Playing WAVE './file.wav' : Signed 16 bit Little Endian, Rate 44100
> >> Hz, Stereo
> >> aplay: set_params:1407: Unable to install hw params:
> >
> > It's a known side-effect of the implicit feedback mode, and the latest
> > patchset I mentioned earlier addresses the issue.
> >
> >
> > Takashi
> 
> I'm already running the kernel built from the linux-next tree...
> I built next-20201208 from
> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> Is there another patch set that I'm missing?

Hm, strange.

Please check the contents of /proc/asound/card*/stream* file.  With
the latest patches and the implicit feedback mode, you should see the
lines like "Sync Endpoint: 0x...." and "Implicit Feedback Mode: yes".


Takashi



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