cc-to-nrpn

ChucK scripts to map incoming MIDI CC messages to device-specific NRPN.

Example

mopho.ck assumes you are using a Novation Launch Control XL configured with the corresponding mapping file in order to control a Mopho (only tested on desktop module version).

Use chuck --probe to find the IDs of your connected MIDI devices:

$ chuck --probe
[ ... ]
[chuck]: ------( chuck -- 2 MIDI inputs )------
[chuck]:     [0] : "JUNO-Gi"
[chuck]:     [1] : "Launch Control XL"
[chuck]:
[chuck]: ------( chuck -- 3 MIDI outputs )-----
[chuck]:     [0] : "JUNO-Gi"
[chuck]:     [1] : "Launch Control XL"

In this case I want to route input from the Launch Control XL (1) to the Mopho, which is connected to the JUNO-Gi's MIDI output (0).

Run the following command, replacing the corresponding device numbers:

$ ./scripts/mopho.sh 1 0

Then move any pot or fader on the Launch Control XL, and you will see the corresponding value on the Mopho change.

Supported features

• Directly mapping a CC value to an NRPN value. If the possible values for the NRPN have a different range than 0-127 they will be scaled accordingly, with precision loss if the range is larger
• Sending NRPN Increment and NRPN Decrement messages, which will increase/decrease the last changed parameter's value by 1
• Cycling through an NRPN's possible values by repeatedly pressing the same button
• Data entry control, which allows one CC to dynamically control the value of the last changed parameter