Believe I have the same problem - 12.04 x64.
Sound is pulsing media apps (Have tried VLS/Kaffeine/Rhythmbox).
Has only been happening for the last couple of days - was fine before.
Have tried the fix suggested (Turning off PulseAudio timer scheduling).
REALLY annoying - am going back to Suse until this is fixed.
Believe I have the same problem - 12.04 x64. Rhythmbox) .
Sound is pulsing media apps (Have tried VLS/Kaffeine/
Has only been happening for the last couple of days - was fine before.
Have tried the fix suggested (Turning off PulseAudio timer scheduling).
REALLY annoying - am going back to Suse until this is fixed.