[pulseaudio-discuss] skype sound effects create a buzzing noise

[Arun Raghavan]

On Tue, 2013-06-04 at 21:44 +0200, Julian Sikorski wrote:
> W dniu 27.05.2013 21:56, Julian Sikorski pisze:
> > W dniu 27.05.2013 05:36, Arun Raghavan pisze:
> >> On Thu, 2013-05-23 at 20:26 +0200, Julian Sikorski wrote:
> >>> W dniu 23.05.2013 20:10, Julian Sikorski pisze:
> >>>> W dniu 23.05.2013 19:32, Arun Raghavan pisze:
> >>>>> On Thu, 2013-05-23 at 19:22 +0200, Julian Sikorski wrote:
> >>>>>> Hi,
> >>>>>>
> >>>>>> this was annoying me long enough that I have decided to investigate.
> >>>>>> Basically, I am using skype-4.2 and pulseaudio-2.1 on fedora 18 x86_64.
> >>>>>> Whenever skype produces a sound event (incoming message bleep, logging
> >>>>>> in sound), buzzing noise will occur. This is especially prominent when
> >>>>>> playing a song in the background. I have looked at the log and the error
> >>>>>> message seems to be this:
> >>>>>>
> >>>>>> D: [alsa-sink] memblock.c: Pool full
> >>>>>> D: [alsa-sink] memblock.c: Pool full
> >>>>>> D: [alsa-sink] memblock.c: Pool full
> >>>>>>
> >>>>>> I have attached a full log. I know that PA 2.1 is really old now, but
> >>>>>> Fedora seems to be having hard time aligning with PA releases these days.
> >>>>>
> >>>>> This happens because PulseAudio didn't handle low latency requests well
> >>>>> enough. This has been fixed recently, and will be available in the next
> >>>>> release (or in one of the 3.99.x prereleases if you can get a package
> >>>>> for it).
> >>>>>
> >>>>> -- Arun
> >>>>>
> >>>> That's great to hear! Hopefully 4.0 will make it to Fedora 19, otherwise
> >>>> it will be in Fedora 20 which is slated for a January release. It's
> >>>> funny to think that Fedora was once the distro advocating pulseaudio.
> >>>>
> >>>> Julian
> >>>>
> >>> I just talked to the Fedora PA maintainer and unfortunately F-19 is too
> >>> far past freeze to ship PA 4.0.
> >>> Is the fix you mention possible to backport to 3.0 (which is what F-19
> >>> is going to be shipping)?
> >>
> >> This is the one you'll want:
> >>
> >> http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/?id=5f326b705d8f7f0c14e7e0c7d7c2751f3a5ebe43
> >>
> >> Cheers,
> >> Arun
> >>
> > Hi,
> > 
> > I have ported the patch over back to 2.1, but now it is even worse -
> > Skype does not make any sound at all, and suppresses other system sounds
> > as well:

Turns out we have this problem with 4.0 as well. The folks at Skype said
they'd take a look. In the mean time, you can start up Skype with:

PULSE_LATENCY_MSEC=30 skype

-- Arun