On Wed, 26 Nov 2008 06:45:46 -0500 Dave Phillips <dlphillips@xxxxxxxxxx> wrote: > Greetings, > > I received my UA25 yesterday. The system recognizes it immediately, > and audio I/O appears to be working fine. The MIDI ports show up in > QJackCtl's ALSA connections panel, but I haven't tested them. > > Nice unit, but there's one big trouble with it: I get a lot of xruns > from JACK. I've Googled for solutions, tried every suggested setting, > got no joy. The only setting that works without xruns at all yields a > latency of more than 30 ms (-p 512 -n 4 -r 44100). If I lower the > period size to 256 I can get the latency down to 23.2 ms and suffer > only an occasional xrun. Btw, the rtirq script doesn't seem to help > this unit. > > I thought this device would get lower latency than the on-board > soundchip, but the HDA chipset runs at ~17 ms latency with no xruns > at all. Am I missing something ? The UA25's Advanced switch is on, > the sample rate is set correctly. Any further suggestions ? > > Best, > > dp At least -p 128 -n 3 -r 44100 should work fine, at least it does so on my ubuntu system. I wouldn't try to get much lower. Haven't configured arch for audio yet, will do so soon and see what the stock kernel can do. Philipp _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
