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        MIDI-OX >> Mapping Questions >> can't map note off to cc
        
(Message started by: snare on Jan 12^th, 2003, 10:38pm)

Title: can't map note off to cc
Post by snare on Jan 12^th, 2003, 10:38pm

I have been having a great time making my midi keys control cc messages in all sorts of unique ways. What I want to do now is map both the note on data and note off data to cc messages and reverse them so that when I press a key the value goes up and when it is released the value goes down. Only I can't seem to get note off data to do anything. I have tried many configurations and It just doesn't seem to be able to control anything. I am hoping someone could shed some light on why this may be or if I should be able to do this at all.

Thanks,

snare

Title: Re: can't map note off to cc
Post by Jamie OConnell on Jan 12^th, 2003, 11:07pm

I think you will find that the problem is that NoteOff can be specified in 2 different ways, and you must account for both methods in any map that uses them.

1) A real NoteOff Event has a MIDI status of 80 hex, and can contain an associated NoteOff velocity.

2) A NoteOn Event with 0 velocity is equivalent to a NoteOff Event (Status: 90 hex).

Some synths and controllers send a NoteOff status, but others use a NoteOn with 0 velocity, so you must map both situations.

Title: Re: can't map note off to cc
Post by snare on Jan 13^th, 2003, 12:17am

So quick,

I knew it would be easy.

Thanks