Jaunty has a new version of PulseAudio. The below is taken from "https://fedoraproject.org/wiki/Features/GlitchFreeAudio", perhaps you can report back if this helped you or not.
The PulseAudio sound server has been rewritten to use timer-based audio scheduling instead of the traditional interrupt-driven approach. Timer- based scheduling may expose issues in some Alsa drivers. To turn timer- based scheduling off, replace the line load-module module-hal-detect in /etc/pulse/default.pa by load-module module-hal-detect tsched=0 -- Crackling noise after update to pulseaudio https://bugs.launchpad.net/bugs/301755 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs