Public bug reported:
Binary package hint: pulseaudio
Ubuntu intrepid (development branch)
Release: 8.10
Pulseaudio version: 0.9.10
I just installed fresh install of Intrepid beta and upgraded to latest
packages. I was using Hardy before and had no problems then.
After the Intrepid install the sound is very loud and there's lots of
noise when playing back sounds. I thought the volume controls was maxed
out, as that would give similar symptoms on a working setup. However,
they were barely half of max. So I installed padevchooser and started
looking for what could be wrong.
The thing that fixes it is reducing the application volume to no more
than 60-70%, if any louder the audio will sound really
garbled/crackling. Now, the problems is that the volume setting is 100%
by default so all new programs I launch sounds terrible. The sliders
will occasionally reset also making it unusable. Note that reducing the
sound output from e.g. music programs will let me have the sliders at
100%. But programs like pidgin and login/logout sounds are set at a too
high level by default (and no option to adjust them).
The positive thing is that I can now have louder output without
crackling than before if I adjust all the sliders correctly, but this
should be fixed before Intrepid release!
"lspci -v" output attached.
** Affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
** Tags: crackling intrepid pulseaudio sound
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crackling in audio when application volume is 100%
https://bugs.launchpad.net/bugs/285866
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