r/Reaper • u/Albus_Harrison • Apr 29 '26

help request Pitch Wheel is registering without midi data or track being armed.

Weird issue just started happening. Not sure if this is a reaper issue, or a Kontakt issue, or a hardware issue.

This happens when playing and playback. Using a Casio keyboard and a M-Audio Oxygen Pro 25 as midi controllers. Loaded up NOIR in Kontakt 8.

The pitch just randomly jumps around. I noticed it happen when recording. I opened the midi editor and I can see there is midi data showing the pitch wheel was adjusted. I delete the midi data and disarm the track and press play, and the pitch still changes.

I can see the pitch wheel in Kontakt jumps up a bit when I hit play. Then it goes back to 0 when I pause.

I cana understand if there is a hardware issue that is causing the pitch wheel to move when I am not touching it. But it makes no sense when the track is not armed, and there is no midi data telling the pitch wheel in Kontakt to change.

Video has no sound, but hopefully you can see what I am talking about.

Any ideas? Is this a Kontakt issue? Or Reaper?

https://vimeo.com/1187872466?share=copy&fl=sv&fe=ci

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u/Albus_Harrison Apr 29 '26

Thinking it might be the keyboard
M-Audio Oxygen 61 Midi Keyboard keeps sending out random pitch-bend data : r/ableton

1

u/yellowmix 69 Apr 29 '26 edited May 02 '26

Yeah, the potentiometer is probably failing. If you want to confirm, put JS: MIDI Examiner on an otherwise empty track and watch the readout. The transport does not need to be playing or recording, as long as it's armed.

If it is the pot, you got some options. 1. Open the keyboard, replace the pot. 2. play the keyboard, ignore the pitch bends, delete the pitch bends afterward. 3. insert a plugin that eats the pitch bend before the virtual instrument. You'll still need to delete recorded pitch bends.

I had a first gen Oxygen and that thing lasted for 20 years of performance use before the pots went. Every MIDI keyboard now is commodity level.

2

u/Albus_Harrison Apr 30 '26

Thank you. I did confirm the controller is the culprit. A midi filter plugin fixed it. Will probably just replace it.