Filter
Top Products
117
Creating a Patch
Overview Connections VS-700C Console VS-700R I/O Fantom VS Appendix
An LFO (Low Frequency Oscillator) causes change over a
cycle in a sound. Each tone has two LFOs (LFO1/LFO2),
and these can be used to cyclically change the pitch,
cutoff frequency and volume to create modulation-type
effects such as vibrato, wah and tremolo. Both LFOs
have the same parameters so only one explanation is
needed.
Patch LFO 1/2
Waveform (LFO1/LFO2 Waveform)
Selects the waveform of the LFO.
Value
SIN:
Sine wave
TRI:
Triangle wave
SAW-U:
Sawtooth wave
SAW-D:
Sawtooth wave (negative polarity)
SQR:
Square wave
RND:
Random wave
BND-U:
Once the attack of the waveform output by the
LFO is allowed to develop in standard fashion,
the waveform then continues without further
change.
BND-D:
Once the decay of the waveform output by the
LFO is allowed to develop in standard fashion,
the waveform then continues without further
change.
TRP:
Trapezoidal wave
S&H:
Sample & Hold wave (one time per cycle, LFO
value is changed)
CHAOS:
Chaos wave
VSIN:
Modified sine wave. The amplitude of the sine
wave is randomly varied once each cycle of the
waveform.
STEP:
A waveform generated by the data specified in
LFO Step 1–16. This produces a fixed pattern of
stepwise change, like that created by a step
modulator.
If you set this to “BND-U” or “BND-D,” you must turn the
Key Trigger parameter to “ON.” If this is “OFF,” it will
have no effect.
LFO Rate (LFO1/LFO2 Rate)
★
Adjusts the modulation rate, or speed, of the LFO.
Value:
0–127, Note
LFO Rate sets the beat length for the synchronized tempo is
synchronized with the tempo set in an external MIDI
sequencer.
(Example)
For a tempo of 120 (120 quarter notes occur in 1 minute (60
seconds))
This setting will be ignored if the Waveform parameter
is set to “CHAOS.”
Rate Detune (LFO1/LFO2 Rate Detune)
LFO Rate Detune makes subtle changes in the LFO cycle rate
(Rate parameter) each time a key is pressed. Higher settings
will cause greater change. This parameter is invalid when
Rate is set to “note.”
Value:
0–127
Offset (LFO1/LFO2 Offset)
Raises or lowers the LFO waveform relative to the central
value (pitch or cutoff frequency). Positive (+) settings will
move the waveform so that modulation will occur from the
central value upward. Negative (-) settings will move the
waveform so that modulation will occur from the central
value downward.
Value:
-100, -50, 0, +50, +100
Modulating Sounds (LFO1/2/Step LFO)
Setting
LFO Rate
(half note)
1 second (60 / 60 = 1 (second))
(quarter note) 0.5 seconds (60 / 120 = 0.5 (seconds))
(eighth note) 0.25 seconds (60 / 240 = 0.25 (seconds))
VS-700_r_e.book 117 ページ ２００８年１１月２０日 木曜日 午後２時２８分