Adding The Rotary Speaker Effect (Rotary Sound) - Roland V-Combo VR-760 Owner's Manual

Performing with the Keyboard

Adding the Rotary Speaker Effect (Rotary Sound)

Rotary Sound is an effect which adds the modulation that is produced when
organ voices are used with a rotary speaker. On most rotary speakers, the
high-frequency speaker and low-frequency speaker rotate at different
speeds. The VR-760 can simulate this type of complex modulation.
fig.04-17(RotaryButton)
ROTARY [ON] button
The rotary speaker effect can be switched on/off.
When this effect is applied, the rotary [ON] button's indicator lights up.
[SLOW/FAST] button
Switches the speed of the rotary speaker. FAST and SLOW will alternate
each time you press the [SLOW/FAST] button.
FAST rotation is selected when the indicator blinks rapidly. SLOW rotation
is selected when the indicator blinks slowly. When you change between
slow/fast, the speed of rotation will change gradually.
[BRAKE] button
This button temporarily halts the rotation of the rotary sound.
Button
Lit (ON)
Dark (OFF)
About the Quick Firing Keyboard
The keyboard used for the VR-760 is the product of research into the design
and behavior of keyboards used in traditional organs, with modern
technology used to reproduce these characteristics. Contacts for traditional
organ keys are extremely shallow, meaning that sounds are produced with
the slightest touch of the keys. This gives it special qualities that allow
glissando and similar performance techniques to be used very effectively.
However, well-known side effects of this characteristic are the howling
(feedback) that is produced when the keys are released suddenly, and a type
of behavior that undesirably repeats sounds that are played. On the other
hand, some performers actively make use of these characteristics to realize
a surprising, rapid-fire playing technique.
Since the VR-760's quick-firing keyboard faithfully reproduces these
qualities, enabling rapid playing with the organ section sounds, feedback
could result; this is normal, and does not indicate a malfunction.
42
Explanation
The speed of rotation will gradually slow down and then
stop.
From a stopped condition, the rotation will gradually become
faster.
You can use a foot switch
or D Beam controller to
switch the rotary speaker
between fast and slow. For
details, refer to "Using the
D BEAM Controller to
Produce Common
Effects" (p. 49) and
"Assigning Functions to
Control Pedal" (p. 66).
You can turn off the quick
firing function (p. 66).