I want to use fedora as a platform for mythtv. However, f15 seems to embed pulseaudio very deeply into the ui. Although PA will support ALSA's API, so that stuff like myth will work functionally with PA, there's such a long latency through this code path that the sound noticeably lags the picture. I suspect that the latency is due to the end-to-end buffering model and it's therefore not just a simple question of using faster tin.
How do I shorten the latency below a few ms? Do I have to move to a non-gnome UI?