A little PureData external for MIDI Polyphonic Expression (MPE)

You can instantiate the mpe object simply with [mpe], and it will listen to all MIDI devices enabled in the pd midi settings. Alternatively, you can select a specific midi device e.g. device number 2 with [mpe 2].

The object has only one outlet which outputs a list with the following atoms:

• device number integer in range [1, 16], reflecting the midi devices in the pd midi settings (will be omitted when specific device is selected)
• voice number integer in range [1, 15], represents midi channels 2-16 (MPE)
• midi event symbol see below
• value1
• value2

The last two values depend on the midi event symbol. In case of noteon and noteoff, both values are used. The other three events only send one value:

• noteon
  • value1: midi pitch
  • value2: velocity
• noteoff
  • value1: midi pitch
  • value2: velocity
• press
  • value1: integer 0-127
• slide
  • value1: integer 0-127
• glide
  • value1: integer 0-16383

You can find the binary for macOS in the bin directory. In case you want to compile it yourself, you can use the CMakeList.txt to set your paths, and create your project with the terminal similar to this:

mkdir build
cd build
cmake .. -G XCode

(see createXcodeProject.sh)

It's very similar for windows to create Microsoft Visual Studio projects. You should also be able to build it directly with CMAKE.