Roland XV-2020 Owner's Manual page 58

2 x srx expansion
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Creating a Patch
Parameter
RES
(Resonance)
RES VEL SENS
(TVF resonance velocity
sensitivity)
CUTOFF KF
(Cutoff Key follow)
VEL CURVE
(Cutoff Frequency Velocity
Curve)
VEL SENS
(Cutoff Frequency Velocity Sensi-
tivity)
TVF ENVELOPE
ENV DEPTH
(TVF envelope depth)
ENV TIME KF
(TVF Envelope Time Key follow)
58
Value
Description
0–127
Increases the level of the cutoff frequency itself to add a popular classic synth char-
acter to the sound. Excessively high settings can produce oscillation, causing the
sound to distort.
Level
-63–+63
Use this parameter when you want velocity to affect the amount of Resonance.
With higher settings, there is a greater difference in the amount of Resonance be-
tween softly and strongly played notes. Negative (-) values reverse the direction of
the change.
-200–+200
Use this parameter if you want the cutoff frequency to change according to the key
that's pressed. At Middle C (C4), the original Cutoff value is used. Positive (+) set-
tings cause the cutoff frequency to rise for notes higher than Middle C, and nega-
tive (-) settings cause the cutoff frequency to fall for notes higher than Middle C.
Higher settings produce greater amounts of change to the original Cutoff setting.
Cutoff frequency
(Octave)
FIXED, 1–7
Chooses one of seven curves that determine how keyboard playing dynamics (ve-
locity) influence the Tone's cutoff frequency. When V-Curve is set to "FIXED," the
cutoff frequency remains unchanged regardless of how hard or soft the keys are
played.
1
-63–+63
Sets the amount of change to the Cutoff setting to be applied as a result of changes
in playing velocity. With higher settings, there is a greater amount of change be-
tween softly and strongly played notes. Negative (-) settings reverse the direction
of change.
L0
Cutoff
Frequency
-63–+63
This adjusts the amount of filter enveloping. Higher settings produce more change.
Negative (-) values invert the effect of the TVF envelope.
-100–+100
Use this parameter when you want a note's keyboard position to affect times T2–
T4 of the TVF envelope. Higher settings change the times by a greater amount as
you move away from Middle C (C4) - at Middle C, the original T1-T4 settings are
in effect. Positive (+) settings cause the times to shorten as you play above Middle
C. Negative (-) settings cause the times to lengthen as you play above Middle C. (p.
55)
LPF
BPF
Frequency
Cutoff frequency
+2
+1
o
-1
-2
C1
C2
C3
C4
2
3
4
T1
T2
T3
T4
L1
L3
L2
key is
key is
pressed
released
HPF
PKG
+200
+100
+50
0
-50
-200
-100
C5
C6
C7
Key
5
6
7
L4
Time
High
Low

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