Roland V-Card VC-1 D-50 Owner's Manual page 62

Tone Parameters
fig.09-32e(Resonance)
Reso (Resonance)
Boosts the cutoff point. As you increase the value, specific
harmonics are emphasized and the sound will become more
unusual, more electronic in nature.
Value: 0–30
fig.09-33e(CutoffKeyFollow)
KF(Keyfollow (Cutoff Point))
Keyfollow can change the cutoff point depending on the key
played. Just like the Keyfollow of WG pitch, the value
represents how many octaves change over 12 keys.
Value: -1, -1/2, -1/4, 0, 1, 1/4, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 5/4,
3/2, 2
BP (Bias Point)
You can add a further change (= bias level) to the Keyfollow
curve, and set the range (bias direction) where the bias level is
valid. The bias range is where the bias level is valid on the
keyboard. It can be set with the bias point (where the bias
range begins) and bias direction ( < or > ).
Value: <A1–<C7, >A1–>C7
Display Example
>C4
<C4
BLevel (Bias Level)
The bias level can be set. "+" values raise the curve, and "-" value lower the curve.
Value: -7–+7
62
Example Function
The bias level is only valid on the keyboard above the C4 key.
The bias level is only valid on the keyboard below the C4 key.
100
Cutoff Point
Cutoff Point
Cutoff Point
0 Cutoff Point
Pitch
+3
(Octave)
2
-1
1
-1/2
-1/4
0
-1
Middle C (C4)
Frequency
Frequency
Frequency
Frequency
2 3/2 5/4
1
7/8
3/4
5/8
1/2
3/8
1/4
1/8
0