[pulseaudio-discuss] recording from Built-in Audio too slow

[Tanu Kaskinen]

On Sat, 2014-04-05 at 14:10 -0700, mattes wrote:
> On Sat, 05 Apr 2014 10:07:48 +0300 Tanu Kaskinen
> <tanu.kaskinen at linux.intel.com> wrote
> 
> > On Fri, 2014-03-28 at 20:27 -0700, mattes wrote:
> > > Trying to record audio that is already playing on the system.
> > > E.g. live conference.  For Recording is use gnome-sound-recorder or 
> > > audio-recorder, which by default records from the mic input. 
> > > Using pavucontrol as a helper, I switch the under the recording tab
> > > to the 'Monitor of Built-in Audio Analog Stereo' to get access to the
> > > internal audio channel.
> > > 
> > > It works, but there is a nasty side effect. When playing back the recorded
> > > sound clip, I noticed  that the pitch is different. As it turns out the
> > > clip is playing in slomo, roughly 10%+ slower. Enuff to be annoying. It
> > > seems that playback time is longer than the actually recording time.
> > > 
> > > I switch to a different recorder, but no change the problem still evident.
> > >  "'anil'" <anil at univesointegration.com>
> > > One thing I noticed is that, the slow down does not occur when I record
> > > e.g. from microphone. Starting the recording from the MIC input and then
> > > switching during the recording to 'Monitor of Built-in Audio', shows that
> > > the slowdown start when the switch happens.
> > > 
> > > The laptop is running Fedora 19. close to be uptodate
> > > 
> > > Any advice how this can be fixed?
> > 
> > This might be this bug, which was fixed in 5.0:
> > https://bugs.freedesktop.org/show_bug.cgi?id=66424
> > 
> > -- 
> > Tanu
> 
> Thank you that is helpful. the bug seems to fit very well to the problem I
> experience.
> 
> I am in the process of upgrading my Fedora 19 pulseaudio v3 to the 
> current git version. Is that considered a stable version or do you folks
> have stable packages available some where.

The git version should be stable enough.

> Is pulseaudio v5 compatible with Fedora 19?

Yes, I'm using the git version on Fedora 19 myself.

-- 
Tanu