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Velocity, dynamics, and gate time, Velocity, Dynamics – Apple Logic Express 7 User Manual

Page 118: Gate time

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Chapter 3

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If you want to transpose by octaves, click on the arrows to the right of the Transpose
parameter. This opens a pull-down menu that allows direct octave transpositions.

To guard against drum notes, and so on being transposed, the MIDI Instrument’s
Object Parameter box contains a No Transpose checkbox. If you place a check in this
box, the transpose parameter is ignored in all MIDI Regions played by this Instrument.

Velocity, Dynamics, and Gate Time

Velocity

Value range: ±99. Normal value: 0

All notes in the relevant Region are offset by the selected value. Positive values add to
the originally recorded velocity, and negative ones subtract from it, although naturally
it is impossible to go outside the limits defined by the MIDI Standard (0–127). If you
select a velocity offset that exceeds the maximum or minimum possible value for a
particular note, that note will play at the extreme possible range. As an example, a
setting of

+

20 will cause a note with a velocity of 120 to play at 127.

Dynamics

Value range: in percent. Normal value: 100%

This parameter also affects the velocity values of notes, but instead of adding or
subtracting a fixed amount, the differences between “soft” and “loud” notes (the
dynamics) are increased or decreased. This works in a similar way to a compressor or
expander. Values above 100% expand the dynamics, thereby increasing the difference
between “loud” and “soft”, while values below 100% compress the dynamics, reducing
the differences between “loud” and “soft”.

The Fix setting causes all notes to be transmitted at a velocity value of 64. When used
in conjunction with the Velocity parameter (see above), it is possible to set any fixed
velocity value.

Gate Time

Value range: in percent. Normal value: 100%

The term “gate time” stems from the technology used in analog synthesizers, and refers
to the time between pressing and releasing a key. This parameter affects the absolute
note duration or length. This should not be confused with the musical note value,
which normally refers to the amount of time until the next note. The practical effect is
to make the notes in the Region more staccato or legato. The parameter range is
related to the original note lengths. “Fix” produces extreme staccato. Values below
100% shorten the note lengths. Values above 100% lengthen the notes. The “leg.”
setting produces a completely legato effect for all notes, no matter what their original
lengths, eliminating all space between notes in the affected Region. If this is used on a
folder, all notes in all MIDI Regions in the folder will be affected.