Comment 43 for bug 537448

Not sure if this also related to [#532095]. Will add this comment there too.

running multiple sound apps at one time introduces noise (fizzling/buzz).

Another note:
Chromium and totem played the same .flv file (go to youtube, play a video in chromium (http://www.youtube.com/watch?v=l1Vbs84MziY&feature=related) and play the temporary file corresponding to that ( /tmp/Flash*) in totem):
* totem plays it as mono
* chromium plays in stereo
* Starting totem (along side chromium) introduces noise, stopping totem restores clarity to chromium's playback (I am not talking about sounds overlapping, this is white noise) -- the streams appear to be interleaved and correspondingly tempo is halved -- and girl sounds like a guy etc.
* Stopping playback in chromium does not restore full clarity, totem still has residual noise but tempo appears to be restored
* closing chromium and restarting totem restores clarity to totem playback.

* if totem plays first and chromium starts after, all symptoms are inverted except that stopping playback in totem fully restores chromium's playback clarity.

pavucontrol says chromium uses ALSA playback whereas totem is reported as using Playback stream.