Adding Expression To Sound; Using The Lfo; Effects - Roland JP-8080 Owner's Manual

Adding Expression to Sound

In addition to the "three elements of sound," there are
many ways in which expression can be added. This section
explains some of these ways.

Using the LFO

Vibrato
pitch
Vibrato is a cyclic modulation of the pitch. This is a perfor-
mance technique often used by vocalists and on violin or
flute to add expression to the sound.
LFO 1 [RATE] (p.77) +OSC COMMON [LFO 1 DEPTH]
(p.72) etc.
Wah
bright sound
cutoff
frequency
Trumpet
Wah pedal
Wah is a cyclic modulation of the brightness. This is a per-
formance technique that can be heard when a cup mute is
used on a brass instrument, or when a wah pedal is used on
an electric guitar.
LFO 1 [RATE] (p.77) +FILTER [LFO 1 DEPTH] (p.75)
etc.
Tremolo
loud
volume
Tremolo is a cyclic modulation of the volume. This is an
effect that is frequently used on electric pianos.
LFO 1 [RATE] (p.77) + AMP [LFO 1 DEPTH] (p.76) etc.
time
time
dark sound
soft
time

Effects

Effects can be categorized into two types: those which mod-
ify the overtone (partial) structure to modify the original
sound itself, and those which add sound to the original
sound.
Tone Control
Bass Treble
gain
0
This effect adjusts the balance between the high and low
frequencies by emphasizing/attenuating the high/low fre-
quency ranges.
TONE CONTROL [BASS]/[TREBLE] (p.78)
Multi Effects
(Except Distortion)
original
delay circuit
sound
modulation
(Distortion)
original
Distortion
sound
This effect adds a slightly time-delayed sound to the origi-
nal sound, making the sound depth and spaciousness.
[MULTI-FX LEVEL] (p.78)
Delay
original
delay circuit
sound
This effect adds a time-delayed sound to the original sound,
creating an echo-like effect.
DELAY [TIME]/[FEEDBACK]/[LEVEL] (p.79)
frequency
output
output
output
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