Comment 130 for bug 301755

I have crackling sound with both Jaunty and Karmic but only in my usb headset and only when the pulseaudio volume control is not active. If i have the pulseaudio volume control active or even minimized the crackling goes away. When I close it the crackling comes back gradually over about 10 seconds. This does not effect either my hda-intel on board sound chip or my c-media pci card.

The gnome volume control has no effect at all on this problem in either Jaunty or Karmic.

It seems to me that opening the pulseaudio volume control changes the scheduling parameter or something, why would it need to do that?