Kurzweil PC3K6, Musician'S Manual

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Program Mode
The Envelope Control (ENVCTL) Page
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 amplitude envelope 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 value, 127. No effect is had when the
control is at its minimum value, 0, and Depth values are scaled for controller values in between.
Note: For each note triggered, you can only set the controller value that will scale the Depth parameter of
an envelope section before that section of the envelope is triggered. For controllers assigned for Attack, the
controller value used will be the last received before the note is triggered. For controllers assigned for
Decay, the controller value used will be the last received before the final section of the attack envelope
reaches its maximum amplitude. For controllers assigned for Release, the controller value used will be the
last received before the note is released. To put it another way, for each envelope section, you cannot
change the rate of a note’s envelope once that section of the envelope has been triggered.
Impact
Impact can boost or cut note volume by up to 24 dB during the first 20 milliseconds of the attack
of an envelope. This feature is an easy way to get more “thump” from your bass and drum
sounds.