On Wed, 2004-02-25 at 10:24, Steve Harris wrote: > On Wed, Feb 25, 2004 at 07:19:59PM +0100, Arnold Krille wrote: > > When I try to run jackd with less than 50ms latency sound is garbled and > > broken... > > I am using the builtin maestro3 for audio and an Edirol UM-2 for MIDI. Wow...Finally something I have experience with! :) I am using the Maestro 3 chip on a Dell CPXj 650 w /256 MB Ram. I can run Jack under "su root" at 2 x 1024 without but a few Xruns. I'm running MDK 9.2 with Thacs MM Kernel. I had problems at first mainly because I had an identical laptop that only had 128 MB of memory. This mostly caused the machine to slow under X and use more CPU. Items suggested to me were setting /tmp as a ram fs for Jack. I think this helped a little. Also shutting of all unnesesary daemons and services like apm, apci, etc. I getting what I estimate to be about 10ms latency. No problem for the live application I'm using it for which is fx processing on a PA for vocals and acoustic guitar. I was using Ardour as the LADSPA host (major underusage of Ardour!) but now I started experimenting with Alsa Mod synth so I can try using midi control over the effects. > ^^^^^^^^ > I think thats your problem. I cant get the maestro3 in my dell i8100 to go > faster than 2x2048 without xruns. Funnily enough I also use a UM2, but > that doesnt cause me any pain :) > > - Steve
