Kurzweil K2500 - PERFORMANCE GUIDE REV F PART NUMBER 910251 CHAP 6 Manual page 33

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 (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.
Source, Depth
These two parameters work together to let you assign a control like the Mod Wheel to affect the
current layer's envelopes in realtime. The value of the Source parameter defines which control
affects the envelope section, and the value of the Depth parameter defines how much the rate is
multiplied when the control is at its maximum.
Impact
Impact punches the volume during the first 20 milliseconds of the attack of an envelope. Use
this feature to get maximum "thump" from your bass and drum sounds. Programs you create
that use Impact will not work on a K2000.
Program Mode and the Program Editor
Program Editor—Envelope Control (ENVCTL) Page
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