Hi Olli, thank you very much. On Sun, 4 Dec 2016 15:39:55 +0100, Olli wrote: >I haven’t adjusted any IRQ settings, just some minor, usual tweaks for >Arch Linux. Let me know if you want to know any additional details or >if I should run any specifc query! Usually I'm interested in MIDI jitter, but in this case there's no need to run alsa-midi-latency-test for me. There are just two other things I wish to know. 1. Are you using a first or second generation 18i20? I read that for the second generation, there should be issues related to the mixer. 2. Do I understand correctly, 64 samples cause more latency than 128 samples? >48 kHz, 256 samples, 2 periods: >detected roundtrip latency: 1389 samples (28,938 ms) >systematic latency: 621 samples (12,938 ms) > >48 kHz, 128 samples, 2 periods: >detected roundtrip latency: 1239 samples (25,812 ms) >systematic latency: 471 samples (9,812 ms) > >48 kHz, 64 samples, 2 periods: >detected roundtrip latency: 1240 samples (25,833 ms) >systematic latency: 472 samples (9,833 ms) > >48 kHz, 256 samples, 3 periods: >detected roundtrip latency: 1389 samples (28,938 ms) >systematic latency: 621 samples (12,938 ms) > >48 kHz, 128 samples, 3 periods: >detected roundtrip latency: 1287 samples (26,812 ms) >systematic latency: 519 samples (10,812 ms) > >48 kHz, 64 samples, 3 periods: >detected roundtrip latency: 1390 samples (28,958 ms) >systematic latency: 622 samples (12,833 ms) Regards, Ralf _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
