Modulating The Sound (Lfo 1) - Roland JP-8080 Owner's Manual

A: The time from when the note is played until the maxi-
mum volume is reached
D: The time until the volume reaches a steady level
S: The level at which the volume will remain steady
R: The time from when the note is released until the sound
disappears
* Please note the following caution when Individual
Trigger (p.116) or External Trigger (p.121) is turned ON.
If the Trigger Destination is either AMP or
FILTER&AMP, playing without receiving a trigger may
not produce the intended sound, since the amplifier
envelope effect will not apply.
Example of different envelopes
The following two Patches of the JP-8080 contain typical
amplifier envelope settings.
If you wish to create a decay-type sound like that of a piano,
or a sustain-type sound like that of an organ, an easy way to
do so is to select one of the following Patches and adjust the
sliders and knobs to your liking.
P1: B87: Decay-type envelope
P1: B88: Sustain-type envelope

Modulating the Sound (LFO 1)

The LFO 1 (Low Frequency Oscillator) section outputs a
waveform, just as the OSC 1 and OSC 2 sections. However
while the OSC 1 and OSC 2 waveforms are used to produce
the sound itself, the LFO 1 waveform is used to cyclically
modulate the pitch, brightness, or volume of the sound.
* The depth of LFO 1 for each of these is set by the [LFO 1
DEPTH] knobs of the OSC COMMON section, FILTER
section, and AMP section.
[WAVEFORM]
Select one of the following four choices as the LFO 1 output
waveform. The sound will be modulated in the way indicat-
ed by the selected LFO 1 waveform.
(Triangle wave):
The sound will be modulated continuously. This waveform
is suitable for vibrato effects, etc.
(Sawtooth wave):
When the sound reaches its minimum setting, it will then
return to the maximum, and then begin to fall again. If the
[LFO 1 DEPTH] in the OSC COMMON, FILTER, and AMP
sections is rotated to the left of center, the direction will be
inverted. (When the sound reaches its maximum setting, it
will return to the minimum and then begin to rise again.)
(Square wave):
The sound will alternate between two settings.
(Sample and hold):
The sound will switch randomly between various settings.
[RATE]
This sets the modulation speed for LFO 1. At the knob is
rotated to the right, the modulation speed will increase.
* The LFO 1 Rate can be synchronized to the MIDI Clock
messages of a sequencer, etc. For details refer to
"Synchronizing LFO 1 Rate to the Tempo (LFO Sync)"
(p.120), and "Synchronizing Chorus, Delay, LFO 1,
Ensemble or Voice Modulator Delay" (p.144).
[FADE] (Fade Time)
Specify the time from when you press the key and the LFO
1 begins to apply until the modulation reaches the amount
specified by the Depth setting of each section. Rotating the
knob toward the right will lengthen the time until the full
amount of modulation is reached.
Fade Time
Key-on
time
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