MIDI Piano Rolls

A C++ library to process MIDI files extracted from piano-roll scan images.

Downloading

To download using git in a terminal:

git clone https://github.com/craigsapp/midiroll

Compiling

To compile, type:

make

This will compile the utility programs and place them in the bin directory.

Tools

Name	Description
asciiroll	Convert between ASCII and binary MIDI files
countnotes	Count the number of notes for each pitch. Useful to verify roll format.
fped	Convert sustain pedal into note extensions.
mirror	Mirror pitch to check for images which are scaned in mirrored orientation.
notelist
roll2ms
expscale.cpp	Rescale note velocities to a new range.
roll2mstick	Convert tempo messages to millisecond tick values.
rollaccel	Model roll acceleration.
rollbreak
rolltempo
rolltext	Add/read metadata entries in a MIDI file.
setinstrument	Set the instruments used in the MIDI file.
tempomm
tick2time
trackerize	Model tracker bar hole extension.