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MIDI processing and quantizing
Minimum Velocity
When the Minimum Velocity checkbox is activated, the ve-
locity of notes is taken into account, allowing you to re-
move weak notes. You specify the minimum velocity (for
notes to be kept) in the value display.
Remove when under
This setting is only available when both Minimum Length
and Minimum Velocity is activated. By clicking in this field,
you select whether both the length and the velocity criteria
must be met for notes to be deleted, or whether one of the
criteria will suffice.
OK and Cancel
Clicking OK performs the automatic delete according to
the rules set up. Clicking Cancel closes the dialog without
deleting notes.
Restrict Polyphony
Selecting this item opens a dialog in which you can spec-
ify how many “voices” should be used (for the selected
notes or parts). Restricting the polyphony this way is use-
ful when you have an instrument with limited polyphony
and want to make sure all notes will be played. The effect
is achieved by shortening notes as required, so that they
end before the next note starts.
Pedals to Note Length
This function scans for Sustain pedal on/off events, length-
ens the affected notes to match the Sustain pedal off posi-
tion, and then removes the Sustain Controller on/off events.
Delete Overlaps (mono)
This function allows you to make sure that no notes of the
same pitch overlap (i.e. that one starts before the other
ends). Overlapping notes of the same pitch can confuse
some MIDI instruments (a new Note On is transmitted be-
fore the Note Off is transmitted). This command can then
be used to automatically solve the problem.
Delete Overlaps (poly)
This function shortens notes when required, so that no
note begins before another ends. This happens regard-
less of which pitch the notes have.
Velocity
This function opens a dialog that allows you to manipulate
the velocity of notes in various ways.
The following types of velocity processing are available:
Add/Subtract
This simply adds a fixed number to the existing velocity
values. You set the value (positive or negative) with the
Amount parameter.
Compress/Expand
Compresses or expands the “dynamic range” of MIDI
notes by scaling the velocity values according to the Ratio
setting (0–300%). The principle behind this is that multi-
plying different velocity values with a factor higher than 1
(over 100%) will also make the differences between ve-
locity values greater, while using a factor lower than 1 (un-
der 100%) will make the differences smaller. In short:
• To compress (“even out” velocity differences), use ratio
values below 100%.
After compression, you would probably want to add a velocity amount
(with the Add/Subtract function) to maintain the average velocity level.
• To expand (create greater difference in velocity), use ra-
tio values above 100%.
Before you expand, you may want to adjust the velocity with the Add/
Subtract function, so that the average velocity is somewhere in the mid-
dle of the range. If the average velocity is high (near 127) or low (near 0),
expansion will not work properly, simply because velocity values can only
be between 0 and 127!
Limit
This function allows you to make sure that no velocity val-
ues fall outside a given range (the Lower and Upper val-
ues). Any velocity values outside this range are raised/
lowered to exactly the Lower/Upper values.