I finally found a way to make this (kind of work) on ios.
with the new version of the ios app “midifire” I achieved the following.
Each time I hit the hi hat pedal (foot turned to the left and pressed down) the hihat will alternate between open/closed hi hat sound.
I.e. the closed hi hat (wrist not turned) will be transformed into open or closed sound/midi note.
It works for music apps where you can select the output of midifire as midi Input.
For Garage Band there’s a problem as it will also get the original event from the sensor. Garage band overlays the different sounds. Probably it is possible to implement a workaround for that problem. Through midi configure the midi notes that are sent by the sensors. hihat should use a note that isn’t played by garageband. midi fire could map that note to open/closed hihat. Anyway: I didn’t do this as it’s rather complex.
I’ve attached the midifire configuration which can be loaded into midifire as a scene.
You need to connect your sensors in midifire (Setup/Connect Device), events will be routed to the midifire output channel.
I’m not the developer of midifre but I think it’s a mighty tool as it allows any kind of midi manipulation through programming.
Scene-hihatswitcher.mfr (2.9 KB)