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Technical Problems

MIDI Note Event Cleaner is a software program for repairing MIDI files.

When cutting and pasting MIDI files, some MIDI events may be damaged, e.g. Note Off's without corresponding Note On's; and overlapping notes.

Consider the situation where a Note On event is triggered while the note is actually playing.

Now you will have two Note On events followed by two Note Off events, which might give unpredicted results.

There are several solutions to this problem. These are graphically shown below.

Below:
x = Note On
o = Note Off

Original
x----------------x----------o----------o

Solutions in MIDI Note Event Cleaner:

Break First Note On AND Use First Note Off
x---------------ox----------o

Break First Note On AND Use Second Note Off
x---------------ox---------------------o

Discard Second Note On AND Use First Note Off
x---------------------------o

Discard Second Note On AND Use Second Note Off
x--------------------------------------o

Move second Note On to right after first Note Off
x---------------------------ox---------o