tough midi challenge

[jimminy]

Does anyone know a method that will allow me to transpose a note-on message, say from C1 to C#1, by pressing a sustain pedal or some other midi controller?

Here's why:

I have an older electronic drum set, tyically used with a real hihat, so it does't have any way to use a footswitch to change from a closet hat to an open hat. I don't use the drum module for the actual sounds because its so bad sounding, so it just sends the midi data to the computer and a drum machine. I have a pad programed to play a hihat, but I have to switch manually to get an open hihat sound to trigger.

I was thinking I could have the sustain pedal from my keyboard sending on-off data, and by some method or other have that cause the note to be transposed up to a different note and different sound. The effect would be to have the sustain pedal pressed when I want a closed hat (C1), and when I let off with my foot, have an open hat sound(C#1).

I've seen ways to do similar things but not this. help.

[TexRoadkill]

I know some midi controllers will allow you to use pedals to switch programs. You can use two pedals one for patch up and one for down. That might cause too much of a delay though. Some drum machines actually support a HH pedal and that would the best way to go.

One way of faking it would be to hook up the open HH to a volume pedal so you could blend it in but you would still have the closed HH playing in the background.

[cstockdale]

do you want this to work in real time?> i.e. as you play the "hihat", or after the fact: i.e. you have a MIDI track recorded as all closed hihats, and you want to turn some of them into open hihats? If after the fact, then it is easy to edit it, but as you play....hmmmmmm

damn good question. Wish I knew the answer, and I will keep my eye on this thread to see if I can learn somehting myself!