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Author Topic: HOWTO: Translate MF Polyphonic aftertouch to Channel Pressure in Logic Pro X  (Read 155 times)

rgarner

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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;
    c.send();
  } else {
    event.send();
  }
}
« Last Edit: July 15, 2019, 10:20:13 pm by rgarner »

ShapedNoise

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THANK YOU!

I think you MIGHT be able to get ALCHEMY to respond to Poly AT (i'll Look and if i have a win, i'll report

ShapedNoise

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ALCHEMY, Retro and ES2 seem to respond to PolyPressure.   

I have not had a Poly Pressure keyboard since my Ensoniq's so this is rather FUN!

rgarner

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Welcome! I'm glad it was useful for you. I didn't try Alchemy or ES2 but I will now, so thank you in return  :)

 

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