On Sun, 26 Jul 2015 11:01:46 +0200, Jeremy Jongepier wrote: >In the meanwhile the whole planet is using USB for MIDI. That's an assertion without substance. >Please explain what is wrong with it, if possible with test results or >something else that confirms your assumption. I've never experienced >any jitter issues, not even with external MIDI gear. Search the LAU and LAD mailing list archives or edit a four-on-the-floor kick MIDI track. Play an external synth and make an audio recording of that kick, record the kick again and you'll notice that the kicks are never in sync, you'll hear an early reflection like shift or a moving phasing. If you make syncopated or measure free music this is a serious issue, but it already is an issue if you want to sync four-on-the-floor kicks or similar. A lot of people claim that MIDI is not good enough to record "hand made" music, it always suffers from quantisation. To record really "hand made" music there's the need to do audio recordings. That's not completely wrong, but MIDI isn't that bad as many people nowadays think that it is. If you use a C64 or Atari ST and sync by klick or by SMPTE to a tape recorder, you get perfect sync. I noticed that shift of MIDI events is related to the used audio latency. The longer the latency is, the less precise is the timing of the recorded MIDI events on audio tracks. I never was able to get less audio latency than 5.3 ms (-r48000 -p256 -n2). FWIW there's zero audible (and perhaps zero measurable) jitter when using internal virtual synth. We don't know what exactly the OP want's to do, but she seemingly does use external gear. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
