Roland V-Combo VR-09 Workshop Manual page 11

OSC Controls—These controls set the basic sound, pitch, and
shape of the partial.
Setting This parameter:
PWM adjusts the amount of
change, or "modulation,"
applied by the LFO to the
width of the pulse wave
when WAVE is set to
pulse/PWM.
PW manually sets the width
of the pulse wave when
WAVE is set to pulse/
PWM.
SUPER sets the width of the
SAW SUPER SAW wave when
DETUNE WAVE is set to SUPER
SAW.
A sets the envelope Attack
time, the amount of time it
takes for a note to reach
its highest pitch after a key
is pressed, as set by ENV
DEPTH, described below.
D sets the envelope Decay
time, the amount of time it
takes for a note's pitch to
go from its highest pitch
to the one set with PITCH
and DETUNE.
Can be set to:
0 to 127
0 to 127
0 to 127
0 to 127
0 to 127
OSC Controls—These controls set the basic sound, pitch, and
shape of the partial.
Setting This parameter:
ENV sets the degree to which
DEPTH the pitch envelope affects
the partial's pitch. Settings
higher than 0 cause the
pitch to go sharp of the
PITCH and DETUNE
settings; values below 0
cause the pitch to go flat.
The A, D, and ENV DEPTH OSC settings together make up the
partial's pitch "envelope." A pitch envelope makes the tuning of a
partial less static and more alive. When some real instruments—
guitar and trumpet, for example—are played, each note goes
slightly sharp for an instant before settling into tune. You can
simulate this behavior using a positive ENV DEPTH setting and
short A and D times. Negative ENV DEPTH settings cause a note
to start slightly flat and then bend upwards. Longer A and D times
produce interesting, if less organic, pitch movement.
Can be set to:
-63 to + 63
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