translation of Midi NRPN messages into CC

lanrosta · 27 Dec 2005

SM can only handle CC ATM, sorry no Sysex. It's killing me too! Not sure why you'd want to convert NRPN to CC? Most synths have a switch to accept either Sysex or CC commands. I am assuming you are looking for a way to convert CC parameter calls to Sysex (or vice versa) so you can overcome the limitation where older synths don't recognize CC? I don't think SM will work for that since it can't send or receive Sysex. SM does send almost every other MIDI command however. Best thing to do is start looking at and playing with the MIDI (and Skore's MIDI Helpers) modules and see what's possible. Documentation is very thin, but also do some searches on this forum for MIDI stuff.

lanrosta

ferryb · 28 Dec 2005

lanrosta,

Thx for the reply. Midi NRPN (Non Registred Parameter Numbers) messages aren't Sysex. In fact my question was misleading because NRPN messages are a set of four CC (Control Change) messages. A NRPN message uses various combinations of values for CC99 (MSB) and 98 (LSB) to specify the parameter and a value for CC6 (MSB) and CC38 (LSB).

I own a Peavey StudioMix controller that send NRPN messages only and I want to translate those message into 'standard' CC messages likeCC7 (Volume), CC10 (Pan). A example of a typical NRPN message generated by the first fader of the StudioMix controller:

Remark: the messages in the pic are in hex (63 hex = 99 decimal)

I know that it is possible when using the Midi Split (or even the Midi CC) component. but I have to build a sheme to detect and store the 4 CC messages that form a NRPN message and when store one translate it into one CC message.

I was just hoping if someone already made this and prevents me to reinvent the wheel so to say. 😉

lanrosta · 28 Dec 2005

What program is your screenshot from? NRPN's are part of sysex BTW. I can't tell right off, but it looks like you need a MIDI splitter, a trigger and an array to strore your name/value pairs, then a similar way to get them out of the array properly. I'd like to hear about it if you decide build it. 😉

Thanks, lanrosta

ferryb · 28 Dec 2005

lanrosta,

the screenshot is of the excelent midioxse program http://www.midiox.com/

ferry

lanrosta · 28 Dec 2005

Strange, I use MIDIOX all the time, but didn't recognize it. lol. Thanks, lanrosta

infuzion · 28 Dec 2005

ferryb wrote: the screenshot is of the excelent midioxse program http://www.midiox.com/

Thanks for the link, now I know what NRPN means!

ferryb · 15 Jan 2006

Ok, I did it and I must say that the solution is more elegant that the written in Delphi. See: MIDI NRPN component