[LAD] [64studio-users] MIDI jitter

[Paul Davis]

On Thu, Jul 1, 2010 at 7:31 PM, Niels Mayer <nielsmayer at gmail.com> wrote:
> [[see also latency test results for USB 1.0 devices Emagic MT-4 and
> Edirol UM-2, below reply]]

just for comparison, here are the results for an RME Digiface:
sudo /usr/bin/alsa-midi-latency-test -w -r -R -i 20:0 -o 20:0
> alsa-midi-latency-test 0.0.3
> set_realtime_priority(SCHED_FIFO, 99).. done.
> clock resolution: 0.000999848 s

> sampling 10000 midi latency values - please wait ...
> press Ctrl+C to abort test

sample; latency_ms; latency_ms_worst
     0;       1.00;       1.00
     3;       1.00;       1.00
    16;       2.00;       2.00
  2530;       2.00;       2.00
  9999;       1.00;       2.00
> done.

> latency distribution:
  0.0 -  0.1 ms:        3 #
...
  1.0 -  1.1 ms:     9787 ##################################################
...
  2.0 -  2.1 ms:      210 #

> SUCCESS

 best latency was 0.00 ms
 worst latency was 2.00 ms, which is great.