Ok, so I turned acpi off, but everything remained the same. However, with acpi off, but "load-module module-alsa-sink tsched=0" commented out (see attached log), the rapid crackling actually seemed to be gone, but when I would skip around a track it would sometimes go quiet, and changing the volume using volume control in the panel caused the same loud buzzing noise as it did before.
** Attachment added: "pulseverbose.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/428619/+attachment/1758021/+files/pulseverbose.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/428619 Title: [cs46xx] Need tweaks to daemon.conf to eliminate crackle/distortion -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs