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Table Of Contents
380 Chapter 24 Ultrabeat
Envelope Parameters
In order to edit the envelope parameters, first select an envelope by clicking on the
desired 1 to 4 buttons. The parameters of the corresponding envelope can now be
directly changed in the envelope display window.
Attack Time
Attack time defines the period of time the envelope needs to reach its maximum value.
This is measured from the instant you press a key (note on). This period is called the
attack phase.
Grab the attack junction point (the left-most of the two handles found on the x-axis)
with the mouse, and move it to shorten or lengthen the attack time.
Note: To change the shape of the envelope in the attack phase, you can edit both
junction points found in this segment. It is also possible to directly grab the curve with
the mouse and alter it.
Decay Time
Decay time defines the period of time the envelope needs to fall back to a zero
amplitude, after it has reached its maximum value (defined in the Attack phase).
Moving the second junction point on the x-axis shortens or lengthens the decay phase.
Note: To change the shape of the envelope in the decay phase, you can edit both
junction points found in this segment. It is also possible to directly grab the curve with
the mouse and alter it.
Envelope Modulation
The time and shape of the envelopes can be modulated by velocity. Clicking in the
menu field below the envelope 1 to 4 buttons opens the Env Mod menu. Choose either
Time or Shape of the (A)ttack or (D)ecay phase as the modulation target.
The intensity of modulation is adjusted with the mod slider below the envelope display.
Note: When you modulate Shape, low velocity values lead to a sagging envelope
shape, while higher values cause the selected envelope segment to bulge.
Note: When you modulate Time, increasing velocity values lead to a reduction in
length of the envelope segment. Lower velocity values increase the length of the
envelope segment.
Sustain
Activation of the Sustain button causes a red handle (and vertical line) to appear on the
x-axis. This can be moved horizontally—but only within the decay segment area. The
amplitude that the envelope reaches at the Sustain junction point is retained until the
MIDI note is released. After receiving the MIDI note off command, the envelope
continues for the remaining decay time.