Daniel,

I'm sorry, but kernel 2.6.24-17-generic does not help with PulseAudio
stuttering (although some applications appear more resistant to
stuttering than others).

For example (using the default pulse settings): totem (gstreamer, using
pulse) will never stutter under CPU load. VLC using pulse will produce
pops and slight stutters regularly, even when the system is idle.
Pidgin's notification sounds have very noticeable pops, and Skype (OSS
version using padsp) will stutter badly.

The only way I have alleviated stuttering is via tweaks to the fragment
settings, although it is still possible to notice slight stutters under
high CPU load. I do believe the -17 kernel has helped somewhat, but
there is still a problem with the default buffering.

-- 
Over-optimistic buffering in PulseAudio causes underruns (audible stuttering, 
pops)
https://bugs.launchpad.net/bugs/190754
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