On 10-06-18 02:54 AM, Daniel James wrote: > Hi Ralf, > >> Btw. to the list and off-list more and more people subscribed to LAD >> experience MIDI jitter on modern computers for every OS. > > You're quite right to keep mentioning this issue, and I do appreciate > the time you've put into testing to prove the point. > >> OTOH using the >> rtai kernel patch, controlling CNC should be possible without micro >> controllers. I wonder if Linux audio is using the best rt patch, resp. >> if it's possible to use the rtai patch for audio too? > > That patch is not something we've looked at yet, but I'm sceptical that > the realtime kernel is the cause of your MIDI problems. If they got this > right in the 80's, on computers which could not do anything near > realtime audio processing, then I think it's more likely to be a > question of MIDI application design. Have you tried running the test on > Ardour 3? > > Also, we have less on-board MIDI controllers now, and more USB, which I > suspect might be contributing to the problem. > Is there some way to test this?
I am using the MIDI controller on my RME card and I also have USB MIDI controllers that I sometimes use with my laptop. > Looking at the thread here: > > http://forum.cakewalk.com/tm.aspx?m=1178006&mpage=3 > You are not going to see 1 ms timing with USB2 gear.
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