Jump to content

External MIDI note off sent ahead of time in cycle mode


Twister

Recommended Posts

Logic sends note off command for MIDI notes close to the end of a cycle ahead of time. This causes the note to be shorter than inteded, or if note off comes before note on, the note will sustain forever.

 

Steps to reproduce:


  • Create an External MIDI instrument
    Turn Cycle Mode on
    Create a note close at the end of the cycle loop. According to my calculations, notes starting 155 ms or less before the end of the cycle should reproduce the issue, but settings may affect the results. This means that a 1/16th note at the last 1/16th of the cycle will cut immediately when played at 96 bpm, but at 97 bpm and up it will sustain.
    Play and listen to the instrument or monitor the MIDI signal with software. Note off should trigger earlier than what's written in the sequencer.

 

Logic Pro 10.6.3

Mac OS 10.15.7 Catalina

Link to comment
Share on other sites

Is this only with external MIDI instruments or can you reproduce with internal instruments? Can you share a project that exhibits the issue? How to attach files to your post

 

So far I've noticed this behavior only with external MIDI tracks without External Instrument plug-in. Check out the attached project. When I press play, MIDI Monitor logs events:

 

03:33:07.248	To Port 1	Note Off	1	F3	64
03:33:07.283	To Port 1	Note On	1	F3	80

note-off-bug.zip

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...