MIDI pitch distortion in Logic

Hi! I’m really hoping someone here can help me. I am working in Logic, controlling midi and sample sounds with my M-Audio keystation, and all of a sudden everything I’ve played in suddenly pitch shifts by a half step and I can’t get it to go back normal. It’s making me crazy. Also, where it happens, there are these vertical lines. From researching, it seems this is some kind of a pitch shift or mod wheel event, but I haven’t intended any of that. Can I get it to go away without having to replay everything again (and also, who knows when it will just happen again bcs it’s happening alllll the time)….and how can i keep this from happening in the future? It’s making me bonkers.

Posted on Mar 31, 2023 2:39 PM

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CCTM

Level 6

13,185 points

Posted on Apr 1, 2023 3:51 AM

Sounds like your Keystation pitch bend control is sending out data all on it's own.

You could try deleting the existing Pitch Bend messages in the Event List:

Deselect 'Notes" in the event lists filter ( so they don't show up in the list... maybe other MIDI events like CC messages too), then use Command A to select all ( the pitch events) then delete them.

If a clean if the Keystation does not resolve the issues, you could filter out Pitch Bend messages :

Input Filter project settings in Logic Pro – Apple Support (UK)

CCT

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MIDI pitch distortion in Logic

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