Roland MV-8800 Appendices page 55

LFO (Synth LFO)
The LFO is the oscillator that creates a swelling sound. By
greatly increasing the values for parameters such as VCF
vibrato (p. 55) and PWM depth (p. 56), you can get various
kinds of vibrating sounds (periodic, cyclical changes) in tone
and pitch.
Waveform
Sets the waveform of the vibration.
fig.10-35e
Tri (
Triangle wave)
Sqr (
Square wave)
SAW (
Sawtooth wave)
S/H
(Sample and Hold
creates random change)
Rate
Value: 0–100
Sets the rate of the vibration. When set to 0, the rate is
approximately 0.1 Hz (10 seconds per cycle), and at a
setting of 100, the rate is approximately 20 Hz (20 cycles
per second). In Tempo Sync this is disabled, and you
cannot make this setting.
Tempo Sync
Value: Off, – x4
This setting synchronizes the rate to the tempo of the
song. When not synchronizing, set this "Off." When you
select the note, the rate setting is disabled, and the rate
is set the note length corresponding to the tempo. When
synchronizing to a song's tempo.
• If "?" appears before the note symbol you set, it is because
the upper (or lower) limit of the setting range has been
exceeded, and that the synchronization is not correct.
Furthermore, the precision of the Rate setting and song
tempo differ. If left to develop over long periods, the two
may gradually drift apart.
Delay
Value: 0–100
Sets the elapsed time between the moment Trigger In
turns "On" and the point at which the modulation from the
LFO reaches the designated depth. As the value is
increased, the elapsed time increases, gradually
deepening the swelling.
Depth
• OSC1/OSC2
Value: 0–100
Sets the depth of the OSC1 or OSC2 vibrato (the
cyclical change in pitch caused b the LFO).
• VCF
Value: 0–100
Sets the depth of the vibrating cutoff frequency by the
LFO. As the value is increased, the cyclical tone
change gets bigger.
• VCA
Value: 0–100
Sets the depth of the wavering volume (tremolo
effect). As the value is increased, the variation in
volume increases.
Effect Block
A-55
MV-8800 Appendices