Kurzweil Forte - Manual (Page 150)

Program Edit Mode
The Amplitude Envelope (AMPENV) Page
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last attack segment. The 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. The 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 effect on any AMPENV sections set to 0 seconds. A way
around this is to change any AMPENV sections set to 0 to 0.02 seconds.
There is an exception for the first attack segment: If the first attack segment is set to
0 seconds and an envelope control parameter is applied, an offset of .002 seconds
will be applied internally when any of those envelope control values does not equal 0.
This allows attack time to be controlled even when attack is set to 0 seconds.
Adjust
This is the familiar Coarse adjust found on many other pages. Use it here to change the rate
of one of the envelope sections without reprogramming the envelope itself. This parameter
doesn’t give you realtime control over the envelope. It is, however, a good way to adjust
the natural envelopes without switching to a User envelope and trying to approximate the
Natural envelope.
Key Tracking
This uses the MIDI note number of each key as the control input for the current layer’s
corresponding envelope section. When the value of this parameter is greater than 1.000x,
notes above C 4 will make the envelope section run faster, while notes below C 4 will make it
run slower. When the value of this parameter is less than 1.000x, notes above C 4 will make
the envelope section run slower, and notes below C 4 will make it run faster. This gives you
realtime envelope control right from your MIDI controller. You might use it, for example, to
cause an acoustic guitar sound to decay quicker at the high end of the keyboard (set the key
tracking to a positive value).
Velocity Tracking
Use your attack velocity as the control input for the current layer’s attack section (this
parameter doesn’t apply to decay or release). When the value of this parameter is greater
than 1.000x, attack velocities greater than 64 make the attack section run faster, and attack
velocities below 64 make it run slower. This gives you realtime attack control over the
envelope.