Bug#864388: pulseaudio: Regression - sound audibly distorted for Creative Soundblaster Live

[Felipe Sateler]

Control: tags -1 moreinfo

On Wed, Jun 7, 2017 at 4:42 PM, Peter Tuharsky <tuharsky at misbb.sk> wrote:

> Package: pulseaudio
> Version: 10.0-1
> Severity: normal
>
> Dear Maintainer,
>
> I have Creative Soundblaster Live PCI soundcard that I have been gladly
> using
> for years. With Debian Jessie it still works fine. However, with Stretch
> there
> is audible distortion on any playback, regardless on PCM or general
> volume. The
> original sound is audible and articulated, however the distortion makes it
> unpleasant.
>


Could you please attach a verbose log of pulseaudio while the problem is
happening?

https://wiki.ubuntu.com/PulseAudio/Log



>
> I have tested playing the same files from command line on tty1 console
> using
> "play" command, and the sound is OK from there. So it seems that kernel
> driver
> is OK and only GNOME sound is affected, therefore I suspect Pulseaudio to
> be
> the centre of trouble.
>

Could you try using the old kernel with the new pulseaudio? Pulseaudio
excercises the driver more than the simple play command, so it may be that
some part of the driver is buggy.

Also, please try adding tsched=0 to the module-udev-detect line in
/etc/pulse/default.pa


> Tested with three different pieces of SB Live card of different branches,
> and
> on two PCs.
>
> Please, what could I do to workaround the problem until it gets fixed in
> Debian?
>

 Difficult to say without knowing what the problem is.

-- 

Saludos,
Felipe Sateler
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