Send MIDI to Outside World - Instrument Script Not Sending Correct Note-Off

LydianArt · 2023-08-19T21:23:22+00:00

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I have a problem with Kontakt 6.7.1 where instrument scripts are sending note-off messages, to the outside world, for the incoming note instead of the note changed by the script.

I've tried a couple factory instrument scripts:

Randomize Pitch
Change Keys

and both exhibit the same incorrect behavior.

After some troubleshooting, I've narrowed down the problem to the instrument script change_note() function. Here's a minimal instrument script to reproduce the problem:

on note
	{ Always play G3 }
	change_note($EVENT_ID, 67)
end on

For example, if the note C3 is received by this instrument script, which always changes the note to G3, a note-off message for C3 instead of G3 is sent to the outside world.

These are the options I have enabled for sending MIDI to the outside world in Kontakt:

send-midi-to-outside-world--settings.png

Here's a screenshot illustrating this problem with a MIDI monitor in Cubase:

instrument-script--change-note--sends-wronge-note-off.png

Kontakt is being sent the note C3
The instrument script always sends G3
The MIDI output of Kontakt is being sent to a MIDI track with a MIDI monitor
The MIDI monitor shows note-on G3 and a note-off C3 (the incoming note) instead of G3 (note changed with change_note() function)

This only seems to be a problem with instrument scripts, and multi-scripts behave correctly when sending MIDI to the outside world. If use the factory multi-script:

Change Keys

the correct note-off message is sent to the outside world.

Here's a screenshot of the correct MIDI being sent to the outside world when using a multi-script:

multi-script-works-correctly.png

It seems like this is a bug, but maybe there's something I'm doing wrong.

Thanks for the help!

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noY_T

Maybe try this:

on init
 declare $noteID
end on

on note
 ignore_event($EVENT_ID)
 $noteID := play_note(67,$EVENT_VELOCITY,0, -1)
end on

LydianArt

Thanks for the help @noY_T !

Your suggestion led me to find a fix for this issue.

First, I changed the settings for Send MIDI to Outside World to:

Incoming notes [OFF]
Incoming CCs [OFF]
Script generated notes [ON]
Script generated CCs [ON]

Finally, I added this minimal script only if the factory instrument script(s) in use don't generate notes/CCs:

on note
  play_note($EVENT_NOTE, $EVENT_VELOCITY, 0, -1)
end on

on controller
  set_controller($CC_NUM, %CC[$CC_NUM])
end on

This combination results in the correct MIDI note on/off (and CC) information being sent to the outside world.

It seems like this is definitely a bug. I also tested the scenario in Kontakt 7 and the same behavior happens there and the fix also works too.

Thanks again for the help - I REALLY appreciate it!

peterharket

I’ve got this issue as well in multiple libraries, but the script doesn’t make a change - do I have to place it before the existing instrument script(s) perhaps?

And is there an easy fix/implementation for those libraries where you’d like to also send CC data?

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