christien Posted July 10, 2022 Share Posted July 10, 2022 I'm having a strange issue with monitoring incoming midi data. Recording midi is working perfectly, but live monitoring is all messed up. Held notes are cutting off after maybe a second and the sustain pedal is having no effect. But it's recording the note's proper length, as well as the sustain pedal data, so what I'm hearing while playing isn't what's being recorded, but it's playing back what has been recorded properly. Nothing changed in terms of hardware or software, aside from adding a new midi keyboard controller. Normally I use an M-Audio hammer 88, just added a keystation 49, going back and forth between them produces the same problem. I usually connect by USB, also tried a midi cable, same problem. I'm on Catalina (10.15.7) logic version 10.6.3. Quote Link to comment Share on other sites More sharing options...
Atlas007 Posted July 10, 2022 Share Posted July 10, 2022 (edited) Could that be that the polyphony of the instrument is exceeded? I.e. if your synth has a polyphony of 8 notes, the 9th note playing will silent the first playing one… Besides, some region parameters could be at stake, such as: Clip Length: This function lets you alter the length of the last notes in a region directly from the Tracks area, by adjusting the length of the MIDI region. When turned on, any notes sounding when the region ends are abruptly cut off. When turned off, notes are played to their normal end point, regardless of where the region ends. Q-Length: This parameter (also expressed as a percentage value) determines how the lengths of quantized notes are affected by the equivalent note lengths (notes at the same position) of a template MIDI region. A value of 0% has no effect, while at 100%, the notes adopt the exact note lengths of the template region. Negative values alter note lengths further, resulting in a more significant deviation from the template. Edited July 10, 2022 by Atlas007 Quote Link to comment Share on other sites More sharing options...
christien Posted July 11, 2022 Author Share Posted July 11, 2022 I was testing with just one note, so definitely not a polyphony issue. The problem has magically resolved itself as of this morning, so I can't test your other 2 suggestions, but thanks for suggesting them! It's like when your car is making some weird noise and the moment you arrive at the mechanic's shop it disappears.... Quote Link to comment Share on other sites More sharing options...
Atlas007 Posted July 11, 2022 Share Posted July 11, 2022 (edited) Well good to hear! Very often just rebooting the computer solves many issues… Anyhow, keep us posted if the problem resurface. The garage is open 24/7…😉 Edited July 11, 2022 by Atlas007 Quote Link to comment Share on other sites More sharing options...
christien Posted July 12, 2022 Author Share Posted July 12, 2022 Ok, it's happening again! I made a screen recording of it this time. I'm playing the first 5 notes of a C major scale, but you'll hear when I'm playing it we only hear the C E and G. When I play back what I recorded, we hear all 5 notes. So the midi is being received and recorded properly (hence not a problem with my keyboard or usb cable, and I've tried alternates of both), but must be somewhere in Logic. I'm using a piano patch in Kontakt, but this also happens with other virtual instruments, including Logic's built-in instruments. I also tried just playing a repeated note quickly, and the way the monitoring audio comes and goes is very regular (like one second of sound, one second of silence) which may shed some additional light. Have a look/listen: Quote Link to comment Share on other sites More sharing options...
Atlas007 Posted July 13, 2022 Share Posted July 13, 2022 (edited) Are you using any audio or MIDI Fx plugin? How are you monitoring? What audio device are you using? Edited July 13, 2022 by Atlas007 Quote Link to comment Share on other sites More sharing options...
Atlas007 Posted July 14, 2022 Share Posted July 14, 2022 (edited) Please disregard the first question in my previous post... (Hadn't watched you video properly... ) However the other questions stand: Quote How are you monitoring? What audio device are you using? Perhaps providing more details about your system's setup and specs could shed some light... BTW, I wonder if adding the new keystation 49 there had been something (spontaneously) added in the Control Surface Setup window, which may be causing such idiosyncrasies? Have you tried the usual troubleshooting procedures? Edited July 14, 2022 by Atlas007 precision and correction Quote Link to comment Share on other sites More sharing options...
David Nahmani Posted July 14, 2022 Share Posted July 14, 2022 Can you reproduce this issue when using the Musical Typing Window in Logic? Quote Link to comment Share on other sites More sharing options...
christien Posted July 14, 2022 Author Share Posted July 14, 2022 8 hours ago, Atlas007 said: Perhaps providing more details about your system's setup and specs could shed some light... BTW, I wonder if adding the new keystation 49 there had been something (spontaneously) added in the Control Surface Setup window, which may be causing such idiosyncrasies? Sorry, thought I'd posted that. Monitoring through a Scarlett 18i20. Keyboard directly into the Mac via USB, not into the Scarlett. Though I did try MIDI cables into the Scarlett - same issue. I looked at control surfaces, the only thing in there is my faderport. 2 hours ago, David Nahmani said: Can you reproduce this issue when using the Musical Typing Window in Logic? That's actually a great question. The issue has resolved itself again so I can't test, but if (more likely when) it starts doing it again, that's the first thing I'll try. So the fact that it's resolved itself again tells me something as well. It seems to happen again every couple days. I have no doubt that something with changing keyboards has triggered it initially, but the fact that it came and went with both keyboards is the confusing bit. I've connected a third keyboard (Yamaha KX8 via USB) to test and it's working fine. Quote Link to comment Share on other sites More sharing options...
JakobP Posted July 14, 2022 Share Posted July 14, 2022 So could it be an instrument in demo mode, i.e. only works for a limited amount of time ? Quote Link to comment Share on other sites More sharing options...
christien Posted July 14, 2022 Author Share Posted July 14, 2022 47 minutes ago, JakobP said: So could it be an instrument in demo mode, i.e. only works for a limited amount of time ? Definitely not that. Quote Link to comment Share on other sites More sharing options...
Atlas007 Posted July 14, 2022 Share Posted July 14, 2022 (edited) 7 hours ago, christien said: looked at control surfaces, the only thing in there is my faderport. When you checked that, did the problem had stopped? If that occurs again, I would try to Bypass All Control Surfaces: Quote Choose Logic Pro > Preferences > Control Surfaces > Bypass all Control Surfaces Edited July 14, 2022 by Atlas007 Quote Link to comment Share on other sites More sharing options...
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