gstreamer and vlc backends : Initial crackling when listening to a KDE sound event

[Trever Fischer]

On Thursday, February 02, 2012 07:33:28 AM aCOSwt wrote:
> Hello,
> 
> When using either the gstreamer or the vlc backend, any KDEv sound event is
> preceded by a short but powerful crackling.
> 
> a/ This never occurs when using the xine backend
> b/ There is no initial crackling when listening a multimedia file with
> dragonplayer even with either the gstreamer or the vlc backend.
> 
> c/ Using whatever x86_64 kernel from at least 2.6.38 to 3.2.1 included
> d/ Using KDE 4.7.4 but this problem was also systematically occurring under
> last 4.6
> e/ Using phonon-4.5.1 + phonon-gstreamer-4.5.0 + phonon-vlc-0.4.0 + phonon-
> xine-4.4.4
> 
> f/ No use of PulseAudio. The backend outputs to Alsa Default which is a
> pseudo device essentially made around dmix resampling_best to 44.100

Try using PulseAudio and see if the problem goes away. I agree with Harald in 
that it might be the sound device waking up from power save.

What distro are you using?

> 
> g/ The audio device is an ICE1712 compatible device outputting through its
> analog outputs to an external audio amplifier.
> 
> Reproducible: Always
> 
> Respectfully,
> 
> aCOSwt
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-- 
Trever Fischer (tdfischer)
Fedora Ambassador, KDE Hacker
http://wm161.net
GPG: C40F2998 hkp://wwwkeys.pgp.net
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