Hi Dominic, Dominic Sacré wrote: ... > An interesting table to put things into perspective. The third column > doesn't seem right though. As far as I can see, the actual note values are > only half of those in the table (assuming bpm means quarters per minute, of > course). Makes the latencies appear a lot less dramatic from a musical > point of view :) ... You are right of course. The strange thing is that I was looking over it and over again, feeling that something was very wrong but I did not see it. Thanks for pointing it out! :-) Hope it's right this time: Time in Length Note, ms in m 120 bpm Comments ======== ======= ======= =========================================== 1000.00 343.00 1/2 en.wikipedia.org/wiki/Speed_of_sound 500.00 171.50 1/4 Common delay speed (echo) 250.00 85.75 1/8 " 125.00 42.88 1/16 " 100.00 34.30 62.50 21.44 1/32 Distande between people in a big orch. * 46.40 15.92 Latency value 31.25 10.72 1/64 Playing real music that fast? Get a life! * 23.20 7.96 Latency value 15.63 5.36 1/128 * 11.60 3.98 Latency value 10.00 3.43 7.81 2.68 1/256 Academic interest (musically) * 5.80 1.99 Latency value 5.00 1.72 Dist. from ear to foot 3.91 1.34 1/512 * 2.90 0.99 Latency value, almost 1 meter 1.96 0.67 1/1024 * 1.45 0.50 Latency, common dist. to monitor 1.00 0.34 Not an uncommon distance to mic or wife 0.98 0.33 1/2048 * 0.73 0.25 Latency value 0.49 0.17 1/4096 of academic interest (musically) The latency numbers is taken from qjackctl's setup dialog box when frames/period are from 16 to 1024 on a 44100 sample rate system with 2 periods/buffer. Jostein _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user