Korg X5DR AI2 SYNTHESIS MODULE Owner's Manual page 101

Reference Guide
Many acoustic instruments often produce less high-frequency energy when played softly. Soft
playing produces a darker sound, while strong playing creates many high frequency harmonics
that brighten the sound. This natural phenomenon can be simulated by setting the 4A VDF Cutoff
Frequency parameter to a fairly low value, and the 4A VDF EG Intensity, 4C VDF EG Sustain
Level, and 5A Velocity Sensitivity EG Intensity parameters to positive values.
Velocity Sensitivity EG Time: This parameter determines how the VDF1 EG Time parameters
are affected by note velocity. It affects the VDF1 EG Attack, Decay, Slope, and Release Time
parameters equally. Although, the direction of change can be set independently for each
parameter.
5B Attack, Decay, Slope, Release Times: These parameters determine whether the VDF1 EG Time
parameters are reduced or increased with changing note velocity as you play the keyboard more
forcefully. For a negative (–) value, they are increased, for a positive (+) value reduced. A setting
of 0 means no effect. The 5A Velocity Sence EG Time value is used for the amount of changes. In
the following illustration, each parameter is set to positive.
Time change (all parameters +)
5C Keyboard Tracking Key: For Low and High keyboard tracking modes, this parameter specifies
the key from which keyboard tracking starts. For All mode, it specifies the key around which
keyboard tracking will take place. At the specified key, keyboard tracking will have no effect.
Keyboard Tracking Modes: Keyboard tracking determines how the VDF affects different areas
of the keyboard. There are four Keyboard Tracking modes: Off, Low, High, and All. When Off is
selected, there is no keyboard tracking and the Keyboard Tracking Intensity and Keyboard
Tracking EG Time parameters are disabled. When Low is selected, keyboard tracking is active on
keys below the specified Keyboard Tracking Key. When High is selected, keyboard tracking is
active on keys above the specified Keyboard Tracking Key. When All is selected, keyboard
tracking will be active across the entire keyboard.
Cutoff
frequency
C-1
OFF MODE
88
Note off
Note on
VDF EG
Cutoff
frequency
Int <–50
Int = –50
Int >0
G9
Int =0
C-1 Key
LOW MODE
Note on Note off
Soft playing
Cutoff
frequency
Int >0
G9 C-1 Key
HIGH MODE
Note on Note off
Strong playing
Cutoff
frequency
Int >0
Int =0
Int = –50
Int <–50
G9 C-1 Key
ALL MODE
Int =0
Int = –50
Int <–50
G9