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

[aCOSwt]

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

g/ The audio device is an ICE1712 compatible device outputting through its
analog outputs to an external audio amplifier.  

Reproducible: Always

Respectfully,

aCOSwt