Korg X5DR AI2 SYNTHESIS MODULE Owner's Manual page 111

Reference Guide
15C Joystick VDF MG Intensity: This parameter
determines how VDF modulation responds to the
joystick (Pitch Modulation MIDI Controller2).
When you pull the joystick on a keyboard (such as
the X3) connected to MIDI IN in direction of –Y,
MIDI Controller 2 is sent to the X5DR, and the VDF
Cutoff Frequency on the X5DR is modulated. (see
"14A–14C VDF Modulation" on page 96.)
15D Joystick Pitch Bend Range: This parameter
determines the pitch bend range ( 1 octave) and
pitch bend direction. For positive values, the pitch
increases as you turn the joystick on a keyboard
(such as the X3) connected to MIDI IN to the right.
For negative values, the pitch decreases.
Joystick VDF Sweep Intensity: This parameter
determines how the VDF Cutoff Frequency responds
to pitch bend. For positive values, the Cutoff
Frequency increases as you turn the joystick to the
right. For negative values, the Cutoff Frequency
decreases.
98
Any value other than 0
With a positive value
–X
Pitch down
With a positive value
–X
Cutoff frequency
down
Increase VDF
modulation
–Y
+X
Pitch up
+X
Cutoff frequency
up