Roland V-Card VC-1 D-50 Owner's Manual page 58

Tone Parameters
fig.09-24(VelocityRange)
Velo (Velocity Range)
Sets the sensitivity of the velocity that controls the pulse width.
With "-" values, the pulse width becomes smaller by playing the
keyboard harder, and with "+" values, the pulse width becomes
wider by playing the keyboard harder.
Value: -7–+7
After (Aftertouch Range)
Sets the sensitivity of the aftertouch that controls the pulse width.
With "-" values, the pulse width becomes smaller with stronger
aftertouch, and with "+" values, the pulse width becomes wider
with stronger aftertouch.
Value: -7–+7
LFO (LFO Select)
Pulse Width Modulation (PWM) means changing the pulse width periodically. LFO Select decides which
of the LFO's is to be used for modulating the pulse width.
Value: +1, -1, +2, -2, +3, -3
fig.09-25e(LFO Select)
Display
+1
-1
+2
-2
+3
-3
LFOD (LFO Depth)
This sets the depth of the PWM. Higher values Deepen the effect.
Value: 0–100
58
LFO (Phase)
LFO-1 (+)
LFO-1 (-)
LFO-2 (+)
LFO-2 (-)
LFO-3 (+)
LFO-3 (-)
+7
0
-7
Positive Phase (+)
Negative Phase (-)