Sorry for bringing up an old post but I had problems similar to what was described here.
I was able to "fix" the crackling audio issues using the following lines in daemon.pa: high-priority = yes nice-level = -11 realtime-scheduling = yes default-fragments = 8 default-fragment-size-msec = 10 Note that this instance of PulseAudio was not running on a ubuntu machine but on a OpenWRT based router (BT HomeHub 5) which is used as a sink for a ubuntu based machine - however since this post came high in the list of search results when I searched the crackling audio issue, there is a possibility that my addition may help somebody. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/301755 Title: Crackling noise after update to pulseaudio To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/301755/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs