Comment 14 for bug 324807

Alex, I agree on your opinion in general but on the other side the new pulseaudio enabled mixer is missing some important features. You can't move streams between devices (as in pavucontrol) and there are the problems Sebastien already mentioned. I hope these problems will be solved upstream and ubuntu will then ship the new version. But I don't believe it will be ready for jaunty. What a bummer!

To use it anyway you'll need to recompile the package with --enable-pulseaudio.