I realized I did not start banshee as recommended (and I have not uploaded the 2nd log).
I upgraded pulseaudio from ppa:diwic/fighting-rewinds, then I performed the test again, this time following the instructions. During the test, the sound was indeed broken as expected, with long pauses between short fragments correctly played. I attach both logs. ** Attachment added: "pulseaudio log after upgrade" https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/825709/+attachment/2582941/+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/825709 Title: Choppy sound due to excessive rewinding on low-end (Atom) CPUs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/825709/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs