[Julien Claassen] > I've got a question about MIDI controller handling in software. I heard, that > MIDI CCs 32-63 have special meaning, or are used as part of 14-bit controllers > or something. Now I have a synth, which submits those. I'm sure, that other > people might also have such devices and, that some software delas with them as > the maufactureres intended?
To know what the manufacturers intended, I guess you'd have to ask them, or purchase the official MIDI spec from midi.org (print copies only!), hope it answers the question and hope that the manufacturer of your synth read and implemented the same spec. Alternatively, a viable approach that seems perfectly in spirit with MIDI's old-style nature is to assume local state for the LSB/MSB pair is always valid and casually update it with data right as it is received, no matter which half. (A possible refinement might update the LSB along with a freshly received MSB: if the new MSB is lower than the stored state, set the LSB to 7f and to 0 otherwise. This way, your complete value will not jump back and forth if you receive a mix of MSB and LSB. You lose an LSB worth of adjustment range if no LSB is ever transmitted though, so to refine it further you might turn on this LSB interpolation only after you actually receive one.) Cheers, Tim _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
