Program Mode
The Envelope Control (ENVCTL) Page
6-45
The pages for Envelopes 2 and 3 are reached with the soft buttons
ENV2
and
ENV3
. When you
select these pages, you’ll find a display that looks very much like the AMPENV page. The only
differences are that you can program an amount for Rel3; the Rel1 and Rel2 limits, which are
±100%; and in the envelope graphic, which has a dotted line running horizontally across the
display. This is the zero level line; negative level values for the various envelope segments will
cause the envelope graphic to dip below this line.
The Envelope Control (ENVCTL) Page
The Envelope Control page gives you realtime control over the rates of each section of the
amplitude envelope for both natural and user envelopes (see
The Amplitude Envelope (AMPENV)
Page
on page 6-42
.) Press the
ENVCTL
soft button to reach the ENVCTL page.
The display’s top line reminds you of the current layer. The column on the left lists the three
section types of the amplitude envelope, and each corresponding line lists the values for the five
DSP control parameters that are available for each section type. The DSP control parameters are:
Adjust, Key tracking, Velocity tracking, and Source/Depth, which are listed at the top of each
corresponding column. When AMPENV is set to
User
mode, the Attack and Release sections on
this page apply to the attack and release sections on the AMPENV page. It’s important to keep in
mind that the values for the various parameters are cumulative, meaning that if for example you
set attack to be controlled by Keytrk and VelTrk, the resulting change on Attack would be affected
by the combination of the values produced by KeyTrk and VelTrk. Also note that unlike previous
Kurzweil models, ENVCTL
does
affect the attack sections of natural envelopes. Additionally, the
bottom line of this page lets you make use of the Impact feature, which lets you boost or cut the
amplitude of the first 20 milliseconds of a note’s attack.
The parameters and values in the following parameters list (see below) apply to
each
of the three
envelope sections—attack, decay, and release. We’ll describe them only once, since their
functions are largely the same for each envelope section. The only difference is with velocity
tracking, which is only available as a parameter to control attack sections of the amplitude
envelope (however, you can assign attack velocity as the value for the Source parameter in each
of the sections).
The 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’s AMPENV page you had set the Decay section’s time at
2.00 seconds
, and its level at
0%
.
This sets the layer’s amplitude to fade to silence two seconds after the completion of the last
attack segment. The decay
time
is two seconds; the decay
rate
is 50% per second. Now if you
select the ENVCTL page and 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. The rate increases to 100% per
second, and the decay time is now one second instead of two.
