Reference Guide
85
Reference Guide
Program
Parameters
1
4A–4E VDF1 Cutoff, EG & Color
These parameters are used to set up the VDF (Variable Digital Filter) for Oscillator1.
This VDF is basically a low-pass filter with a variable Cutoff Frequency parameter. It can be used
to change the tonal quality of a Program. The VDF EG (Variable Digital Filter Envelope
Generator) parameters allow you to determine how the Cutoff Frequency changes over time.
4A VDF Cutoff Frequency:
The Cutoff Frequency can be set from 0 to 99. As the value is reduced,
high frequencies are filtered, thus producing a duller (softer) tone.
EG Intensity:
This parameter determines the amount of control that the VDF EG exerts over the
VDF Cutoff Frequency parameter. Basically, it sets the overall level of the VDF EG.
LCD Parameter Range Description
4A
VDF Cutoff Frequency
(Fc)
0–99 Cutoff frequency
EG Intensity (EGint) 0–99
The amount of control that the following EG parameters exert
over the VDF Cutoff Frequency parameter
4B
Attack Time (AT) 0–99 Time to reach Attack Level after key pressed
Attack Level (AL) –99…+99 Amount of Cutoff Frequency change when Attack Time ends
Decay Time (DT) 0–99 Time to reach Break Point once Attack Time ends
4C
Break Point (BP) –99…+99 Amount of Cutoff Frequency change when Decay Time ends
Slope Time (ST) 0–99 Time to reach Sustain Level once Decay Time ends
Sustain Level (SL) –99…+99 Amount of Cutoff Frequency change until key released
4D
Release Time (RT) 0–99 Time to reach Release Level when key released
Release Level (RL) –99…+99 Amount of Cutoff Frequency change once Release Time ends
4E
Color Intensity (Int) 0–99 Amount of color
Color Velocity (Vel) –99…+99 Color sensitivity to keyboard velocity
04A VDF 1 ø
Fc=19 EGint=65
4A
4B 4C
04E Color1
Int=00 Vel=+00
4D 4E
04B VDF1 EG ø
AT09 AL+08 DT00
04C VDF1 EG ø
BP+00 ST00 SL+00
04D VDF1 EG ø
RT00 RL+00
ø
Cutoff frequency
Frequency
99
Level
0
Color
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