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ptcop to midi converter with portamento, panning, volume

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ptmidi

This attempts to be a more complete .ptcop to .mid converter, using the not-so-recently-released source code of the pxtone parser and player.

Features

  • Most unit properties like volume, panning, and portamento are fully supported (in the case of portamento and key correct, this was through a lot of pitch bend and bend range adjustments).
  • Associations between voices and MIDI programs through a voice naming scheme (see example for use).
    • If the voice name starts with an M and is followed by a number, that voice will correspond to that program number, 0-indexed.
    • If the voice name starts with a D and is followed by a number, that voice will correspond to the percussion sound with that note number, 0-indexed.
  • Every unit is roughly on its own track and channel, except ones assigned to drums.

Limitations

  • Different types of panning are unsupported - currently MIDI pan comes directly from volume panning. Not sure how to do time panning or have any meaningful two-parameter panning with MIDI.
  • Groups and group effects are unsupported - perhaps overdrive and echo could map to some reverb and chorus, or an added channel of echos?
  • All and only percussion sounds are played on channel 10. As a result, only note properties like length and velocity, not channel properties like volume, are kept.
  • Notes should not shift past an octave away from the key it started on, since the maximum pitch bend range is an octave.

Installation/use

See releases.

If on Windows, run ptmidi.exe and select the file to generate another file with .mid appended to it. The Visual Studio solution should also hopefully build.

On other systems, if you have make and gcc 7 or above, run make to build the ptmidi command line executable, then run ./ptmidi {YOUR-FILE}.ptcop to generate {YOUR-FILE}.ptcop.mid. The ptmidi binary might also work in lieu of building.

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ptcop to midi converter with portamento, panning, volume

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