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M-AUDIO Pro Tools Recording Studio User Manual

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Chapter 39: Event Operations

813

Note On

Applies the Change Velocity options to

the MIDI Note On.

Note Off

Applies the Change Velocity options to

the MIDI Note Off.

Set All To

Sets all velocities to the specified value

(1–127).

Add

Adds to existing velocity values by the spec-

ified amount (1–127).

Subtract

Subtracts from existing velocity values

by the specified amount (1–127).

Scale By

Scales all velocities by a percentage

amount (1–400%).

Change Smoothly

Allows velocities to change

smoothly from one value to another over time.

Change Smoothly by Percentage

Allows veloci-

ties to change smoothly from one percentage
value to another over time.

The curve for this change can be adjusted
(+/– 99) to affect how gradually the change oc-
curs.

Limit To

When selected, restricts the Change Ve-

locity

command to a minimum and maximum

range after the selected Change Velocity option
has been applied (and also after any randomiza-
tion has been applied).

Randomize

When selected, the selected Change

Velocity option is randomized by the specified
percentage value after the selected Change Ve-
locity option has been applied. For example,
with the Set All To option enabled and set to a

value of 64, and with Randomize enabled and set
to a value of 50%, the resulting velocities will be
anywhere between 48 and 80 (+/– 25% of the
velocity value).

To randomize selected velocities without applying
any other Change Velocity options:

1

Enable the Scale By option and set it to 100%.

2

Enable Randomize and set the amount of ran-

domization you want.

3

Click Apply.

Velocity Ranges

The valid range for MIDI note velocities is
1–127. The Change Velocity command will
never result in moving velocities outside this
range; 1 is always the lowest and 127 is always
the highest. This means that you can encounter
situations where the Change Velocity command
has no effect on a particular note.

For example, if a note with a velocity 64 is scaled
by 200%, the new velocity would be 127. At-
tempting to scale or increase the velocity any
further yields no further change.

Fading Velocities

To change velocities smoothly over time:

1

Select the range of MIDI notes to be edited.

2

Choose Event > Event Operations > Change Ve-

locity

.

3

Select the Change Smoothly option with the

range set from 127 to 0.

4

Click Apply.

While there are options for adjusting both
the Note On (attack) and Note Off (release)
velocities for notes, most MIDI devices ig-
nore release velocity information. To see if
your instrument supports release velocities,
refer to the manufacturer’s documentation.