[linux-audio-user] midi filter to convert NRPN's to CC's

[James Stone]

On Wed, May 19, 2004 at 08:49:58PM -0400, Chris Pickett wrote:
> Hi,
> 
> I have a synthesizer whose knobs send out NRPN data.  They only have a 
> 12-bit range (0 - 4095), not the usual 14-bit range.
> 
> I'd like to be able to turn one of these knobs, filter the NRPN data 
> into CC data (range 0 - 127), assign it to some arbitrary CC, and then 
> send it to either some running MIDI-capable software or out to my 
> CC-accepting drum machine, with as low latency as possible.
> 
> So far I've found Div's MIDI Utilities for Unix.  Are these tools the 
> most appropriate for the job?  Or are there other more recent things for 
> me to look at?  It looks like I'd have to write some code to get what I 
> want with Div's utils, so I just want to check I don't do something 
> totally redundant.  In windows, MIDI-Ox handled it fairly well, but I 
> don't need anything so complex, just a filter is fine.
> 
> http://www.sreal.com:8000/~div/midi-utilities-for-unix/
> 
> Cheers,
> Chris

I think you should be able to do it with pd fairly easily.. You can
certainly perform mathematical functions on midi inputs. Using pd purely
as a midi router (and modifier) should not be a problem.

James