Kurzweil Flash Play PC4 - Envelope Control

Program Edit Mode
The Amplitude Envelope (AMP ENV) Page
3-62
Values of seg1F, seg2F, and seg3F are forward loops. In each case, the amplitude envelope
plays through the attack and decay sections, then loops back to the beginning of the rst,
second, or third attack segments, respectively.
Values of seg1B, seg2B, and seg3B, are bidirectional loops. e amplitude envelope plays
through the attack and decay sections, then reverses and plays backward to the beginning of
the rst, second, or third attack segment, respectively. When it reaches the beginning of the
assigned attack segment, it reverses again, playing forward to the end of the decay section,
and so on.
When the top Loop eld is set to a value other than O, the bottom Loop eld determines
the number of times that the amplitude envelope will Loop.
A value of Inf makes the amplitude envelope loop until a note is released. A value of 1
through 31 determines how many times the loop will repeat after the amplitude envelope has
played through once. Each note will stop looping and play its release segment when the note
is released.
Envelope Control
e parameters on the bottom half of the AMP ENV page give you realtime control over the
rates of each section of the amplitude envelope for both natural and user envelopes, as well as
control over the Impact parameter.
e values for the various envelope control parameters are cumulative. For example, if you
set attack to be controlled by Keytrk and VelTrk, the resulting change on Attack would be
aected by the combination of the values produced by KeyTrk and VelTrk.
e values of each of these parameters multiply the rates of the envelope sections they
control. Values greater than 1.000x make the envelope sections run faster (they increase the
rate), while values less than 1.000x make the envelope sections run slower. Say for example
that on the current layer you had set the Decay section’s time at 2.00 seconds, and its level at
0%. is sets the layer’s amplitude to fade to silence two seconds after the completion of the
last attack segment. e decay time is two seconds; the decay rate is 50% per second. Now if
you set the Decay Adjust parameter to a value of 2.000x, you’ve increased the decay rate by a
factor of two, making it twice as fast. e rate increases to 100% per second, and the decay
time is now one second instead of two.
Note: Since 0 multiplied by any number equals 0, the envelope control parameters on this
page will have no eect on any AMP ENV sections set to 0 seconds. A way around this is to
change any AMP ENV sections set to 0 to 0.02 seconds.
ere is an exception for the rst attack segment: If the rst attack segment is set to 0 seconds
and an envelope control parameter is applied, an oset of .002 seconds will be applied
internally when any of those envelope control values does not equal 0. is allows attack
time to be controlled even when attack is set to 0 seconds.