Korg prologue Owner's Manual page 56

Type 1 This curve requires you to play strongly in order to produce an
effect.
Type 2, 3
Type 4 This is a typical curve.
Type 5
Type 6 This curve produces an effect without requiring you to play
very strongly.
Type 7 This curve produces a fairly steady effect with little change for
medium-strength playing.
Type 8 This curve produces a fairly steady effect with little change for
medium-strength playing (a flatter curve than 7).
Const 127 All notes will sound at maximum velocity.
Curve types 7 and 8 produce little change for medium-strength playing, and are
suitable when keyboard velocity is not required, or when you want to play each
note at the same velocity. However, these curves will produce a great deal of change
with softly played notes, so the sound may be more difficult to control.
Choose the curve that is most appropriate for your playing dynamics or for the ef-
fect you want to obtain.
Knob Mode
The front panel knobs can operate in one of three modes:
This action will be set for timbres that are set using "Edit Timbre".
Jump: When you turn the knob, the parameter value will jump to the value indicat-
ed by the knob. Since this makes it easy to hear the results while editing, we recom-
mend that you use this setting.
Catch: Turning the knob will not change the parameter value until the knob position
matches the stored value. We recommend that you use this setting when you don't
want the sound to change abruptly, such as while performing.
Scale: When you turn the knob, the parameter value will increase or decrease in
a relative manner in the direction that it is turned. When you turn the knob and it
reaches the full extent of its motion, it will operate proportionate to the maximum
or minimum value of the parameter. Once the knob position matches the parameter
value, the knob position and parameter value will subsequently be linked.
[Jump, Catch, Scale]
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