On Fri, May 12, 2006 at 06:32:01PM +0200, Pieter Palmers wrote: > Paul Winkler wrote: > > (re. presonus Firepod latency)... what kind of latency are you getting > >with it? > > > > The current freebob code + recent firmware should give you around > 350frames of latency at 44100/48000 (about 7ms). Round trip including AD > / DA, measured using jdelay. Not bad at all! I haven't measured with jdelay, but if I understand correctly, round-trip latency is d + (p + p*n)/sr, where p is the -p arg to the jackd backend, n is the -n argument, sr is the sampling rate, and d is the latency introduced by DA and AD conversions. Assuming d is about 1-2 ms, that means you're running with something like jackd -d alsa ... -p 64 -n 3 or -p 64 -n 2 ? If so, that's really pretty nice, I haven't done any better on my delta 66 (but I haven't tried aggressively to go lower). I can sort of run at -p 32 -n 3 (3ms + d) but I get dropouts. -- Paul Winkler http://www.slinkp.com
