midi-plugin

midi utility plugin

Keep state of various params to make more advanced decisions about what messages to send.

Current functionality ideas

Feature: Smart CC increment/decrement

Intercept midi and increment/decrement a CC message's Value by a set amount (default 1), then pass on to output.

• Pretty much the same idea as the existing PC increment/decrement function
• The inc/dec value itself is midi controllable
• disabled just passes input to output

This could be done in the MIDI Captain's Super Mode, using the keypress feature, but only in one direction. This plugin allows incrementing/decrementing CC values without statically configuring them in the captain (or any other device).

Design

My current thinking is to intercept a single, static CC incoming from a controller.

1. Configure the trigger CC.
2. If it's not been set before:
   • Save its current value, or set a starting value, adjustable, midi controllable.
   • If it has been previously set: get the saved value (state).
3. Increment the value by a given integer. Default 1, adjustable, MIDI controllable.
   • RANDOM option
4. provide a RESET function to start over, unset state; midi controllable
   • maximum value of 127. reset to 0 at 128. reset value same as start value. Max value adjustable, midi controllable.
5. same pattern for decrement.

Feature: Auto Ramp

Accept a single CC as a trigger to sweep a CC value up or down.

• Configurable speed.
• Looping option.
• Random option.
• Waveform options (sine, square, triangle, etc)
• Max Value configurable, default 127/0
• Stop/Reset options:
  • Reset to 0 when stopped
  • Ramp to max when stopped
  • Stay at current value when stopped
  • Ramp up/down to 0 (or max) when stopped (configurable ramp speed)

Feature: Timed/Repeat Send

Sends a CC/PC/etc at timed intervals.

• Configurable for one-shot or looping behavior.
• Configurable number of repeats.
• Can be fed into any of the other features (auto-increment, auto-ramp, etc)
• Can be timed or triggered on CC input.60646

Other Tools

This might be implementable in another form using https://github.com/gbevin/ReceiveMIDI and https://github.com/gbevin/SendMIDI.

These CLI apps allow scripted MIDI messaging and state management.