On Sun, Feb 14, 2016 at 11:05:43AM -0500, jonetsu@xxxxxxxxxxxx wrote: > /usr/bin/jackd -T -ndefault -dalsa -dhw:M1010LT -r44100 -p512 -n2 > configuring for 44100Hz, period = 512 frames (11.6 ms), buffer = 2 > periods > > 1597.528 frames 36.225 ms total roundtrip latency > extra loopback latency: 61 frames > use 30 for the backend arguments -I and -O > > /usr/bin/jackd -T -ndefault -dalsa -dhw:M1010LT -r44100 -p256 -n2 > configuring for 44100Hz, period = 256 frames (5.8 ms), buffer = 2 > periods > > 829.529 frames 18.810 ms total roundtrip latency > > ... These numbers lead to the conclusion that the total latency is 3 * period_time + 1.4 ms. Since you use -n 2, the 3 * probably means that you are using jack2 (aka jackdmp) without the sync option. If you use that option (or jack1) the latency will be one period time less. Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow) _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
