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Author Topic: HOWTO: Translate MF Polyphonic aftertouch to Channel Pressure in Logic Pro X  (Read 59 times)


  • Apprentice
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  • Posts: 8
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There are some plugins that work really well with the MF aftertouch (Repro in particular is great). However a lot of plugins don't know what to do with the polyphonic messages. I've got a couple (Softube Modular, Alchemy) that expect Channel Pressure when they refer to "Aftertouch".

Here's a bit of Logic Scripter script you can paste into a MIDI FX Scripter plugin to (very crudely) translate Polyphonic Aftertouch to Channel Pressure, meaning you can use MF key expression in your older plugins:

function HandleMIDI(event)
  if(event instanceof PolyPressure) {     
    c = new ChannelPressure();
    c.value = event.value;
  } else {
« Last Edit: July 15, 2019, 10:20:13 pm by rgarner »


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