To make testing of the upcoming version of Pulseaudio easier, there is now a PPA with daily builds of git master available at ppa:ubuntu-audio-dev/pulse-testing, or https://code.launchpad.net/~ubuntu-audio-dev/+archive/pulse-testing So if you're running Ubuntu Natty or Oneiric, you can do this to install the new modules: sudo add-apt-repository ppa:ubuntu-audio-dev/pulse-testing sudo apt-get update sudo apt-get dist-upgrade And to revert back to what's standard in Ubuntu: sudo apt-get install ppa-purge sudo ppa-purge ppa:ubuntu-audio-dev/pulse-testing You should be able to switch back and forth like this if it weren't for bug https://bugs.launchpad.net/bugs/801133 . I've done my best to keep integration (such as routing alsa:default through pulse etc) but remove all other Ubuntu specific patches. E g, flat volumes is not turned off in this version. Let me know if I missed something. I'm running it here now and it seems to be working fine, although I haven't done more than just some random audio playback. Oh and btw, depending on timing, the steps involved, and the varying workload on Launchpad's servers, expect it to lag up to a day or two behind. At least every now and then. -- David Henningsson, Canonical Ltd. http://launchpad.net/~diwic