Korg X5DR AI2 SYNTHESIS MODULE Owner's Manual page 98

4A–4E VDF1 Cutoff, EG & Color
These parameters are used to set up the VDF (Variable Digital Filter) for Oscillator1.
04A VDF 1 ø
Fc=19 EGint=65
4A
LCD Parameter
VDF Cutoff Frequency
(Fc)
4A
EG Intensity (EGint)
Attack Time (AT)
4B Attack Level (AL)
Decay Time (DT)
Break Point (BP)
4C Slope Time (ST)
Sustain Level (SL)
Release Time (RT)
4D
Release Level (RL)
Color Intensity (Int)
4E
Color Velocity (Vel)
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.
04B VDF1 EG ø 04C VDF1 EG
AT09 AL+08 DT00 BP+00 ST00 SL+00
4B
Range
0–99
0–99
0–99
–99...+99
0–99
–99...+99
0–99
–99...+99
0–99
–99...+99
0–99
–99...+99
Level
0
Cutoff frequency
ø 04D VDF1 EG
RT00 RL+00
4C
Description
Cutoff frequency
The amount of control that the following EG parameters exert
over the VDF Cutoff Frequency parameter
Time to reach Attack Level after key pressed
Amount of Cutoff Frequency change when Attack Time ends
Time to reach Break Point once Attack Time ends
Amount of Cutoff Frequency change when Decay Time ends
Time to reach Sustain Level once Decay Time ends
Amount of Cutoff Frequency change until key released
Time to reach Release Level when key released
Amount of Cutoff Frequency change once Release Time ends
Amount of color
Color sensitivity to keyboard velocity
Color
Frequency
99
Reference Guide
ø
ø 04E Color1
Int=00 Vel=+00
4D 4E
85
1
Program
Parameters