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

[Rex Dieter]

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.
> 
> Is pulseaudio v5 compatible with Fedora 19?

It should be, you can get a packaged version here,
http://repos.fedorapeople.org/repos/rdieter/pulseaudio-backport/

-- Rex