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MIDI processing
Restrict Polyphony
Selecting this item opens a dialog in which you can spec-
ify how many “voices” are used (for the selected notes or
parts). Restricting the polyphony this way is useful 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 multiplying dif-
ferent velocity values with a factor higher than 1 (over
100
%) will also make the differences between velocity val-
ues greater, while using a factor lower than 1 (under 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.
Fixed Velocity
This function sets the velocity of all selected notes to the
Insert Velocity value on the toolbar in the MIDI editors.
Thin Out Data
Thins out MIDI data. Use this to ease the load on your ex-
ternal MIDI devices if you have recorded very dense con-
troller curves, etc.
You can also manually thin out the controller data by using
the quantize function in the Key Editor.