nrpns have got me mighty confused. I feel like I've read a lot about them but I don't know where to start/what to do in any practical sense. I've been trying to find a video or an explanation of what it is I'm actually supposed to do with NRPNs but so far I haven't got anything that's helped me actually do it.
I would like to use the knobs on my MPD32 to control parameters on my MoPho using NRPN increment/decrement. The MoPho can receive them and the Akai can send them. I've set the MoPho up so midi parameter send and receive are on NRPN. Midi control is on.
I have a knob on my Akai set to:
MIDI CH CC
NRPN MSB 127
NRPN LSB 127
Midi Ch 1A
From the MoPho manual:
0 - 120
Oscillator 1 Freq
Upon someone else's (admittedly inexpert) advice, I changed the MSB on the Akai editor to 0 and the LSB to 120, but it didn't seem to work. I didn't think it would, because it didn't make much sense to put the range as the LSB.... but it's all I've heard so far.
The Akai is putting out a stream of numbers like this:
176 99 0
176 98 120
176 96 1
176 99 127
176 98 127
I parsed them that way. In the Max window it was just a stream of numbers... I did midiin - print
Isn't an NRPN supposed to be 4 sets of numbers, not five?
What is the data that's actually being sent here?
And what is the data that the MoPho wants?
99, 98 and 96 are all NRPN controller numbers, so those seem to make sense... or at least I recognize them.
the 96 would indicate that it is "incrementing"... but it's unclear where that's being sent to. It changes to 97 when I go c-clockwise, so that would make sense for "decrementing"...
Also, is 96 an RPN? The mopho doesn't use those, but the Manual does say it can do increment/decrement.
Where did the 176 come from? What does it mean?
For that matter, where did the 127 come from? or the 1?
The MoPho has an NRPN 176 (one of the steps of the sequencer) and the knob is not affecting it, so it doesn't look to me like the first number is where it's going...
A different knob assigned to +/- NRPN puts out the same stream of numbers when moved... starting with 176 again. I didn't see a 176 anywhere on the Akai editor. The only difference in the printed midi data from the first knob and the others is that the first knob has a 0 and 120 in keeping with what I set the LSB and MSB to. The others just have 127 in those places, which is what they are set to when you first assign the knob to NRPN.
What do I do now? Where do I go with this?
Any help or guidance at all would be super duper appreciated.
MoPho manual is here:
Midi is page 30 onward