Public bug reported:
Binary package hint: pulseaudio
My systems run Ubuntu 10.04 64 Bit and 32 Bit (all clean install) and
the problem is the same on both the laptop and the desktop computers.
Crackling sound together with higher CPU usage occurs when playing some
songs (mp3) or video (avi) in VLC player using pulseaudio plugin output.
With some songs or videos crackling is more disturbing than with others,
but I didn't find any pattern - anyway it seems that the sound is never
totally clear. If output is changed to alsa, VLC uses alsa pulseaudio
plugin and crackling is gone, but after some time audio automatically
gets disabled and I need to disable sound track and than re-enable it
again via VLC "Audio->Audio Track" menu (sometimes it doesn't help).
I recently find a workaround which always works for both my computers -
When I delete "~/.pulse" folder (this needs to be done after each
restart of the computer) and then run VLC crackling is gone no matter
which output I set (ALSA/Pulseaudio) and also audio track is not
automatically disabled after some time.
** Affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
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Crackling sound and higher CPU usage in VLC player using pulseaudio
https://bugs.launchpad.net/bugs/646061
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