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

mazzeppa mmpresti at bellsouth.net
Tue Jul 22 22:39:04 PDT 2014

mattes <pa <at> mykmk.com> writes:

> 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 
> 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 
> 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.
> One thing I noticed is that, the slow down does not occur when I record 
> from microphone. Starting the recording from the MIC input and then 
> during the recording to 'Monitor of Built-in Audio', shows that the 
> start when the switch happens.
> The laptop is running Fedora 19. close to be uptodate
> Any advice how this can be fixed?
> Mat
> this way I get access to the

I’m having the same problem with the playback. I was looking for someone 
else with the same problem, and I can find very little information about 
this bug. What did you find out? Following this thread did not help me very 

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