Yamaha PLG150-AN Owner's Manual page 24

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LFO Parameter Blocks
The LFO parameters allow you to create a wide variety of modulation effects, using a low
frequency signal to regularly change the pitch, volume or timbre of the voice. The LFO
can be used to make the sound warmer and more natural, or can be used to produce
wild special effects.
LFO 1 and LFO 2 can also be used as control sources (in
Source,
FM
• Depending on the setting of the selected voice's
2 blocks in the display may be different, with different sets of parameters. All LFO parameters
below are available on either LFO 1 or LFO 2; however, some parameters will only be available
on one of the LFO blocks, while the other block will have a limited parameter set.
LFO 1 / LFO 2 DETAIL Page
• LFO 1 / LFO 2 WAVE
Settings:
Sine, Sine Ofst1 (Offset 1), Sine Ofst2, Sine180 Ofst1, Sine180 Ofst2
Triangle, Triangle Ofst1, Triangle Ofst2, Triangle180 Ofst1, Triangle180 Ofst2
Square, Square Ofst2, Square180 Ofst2
Saw Down, Saw Down Ofst2, Saw Up, Saw Up Ofst2
S/H (Sample & Hold), S/H Ofst2, S/H2, S/H2 Ofst2
• Parameter settings in italics above can only be selected by using the DATA DEC/INC buttons.
This determines the type of wave for LFO 1 or LFO 2. (The same settings are available
for both.) The wave set here determines the characteristics of the modulation applied to
the VCO (vibrato), VCF (wah) and VCA (tremolo).
• LFO 1 / LFO 2 SPEED
Range: 1 ... 256
This determines the speed of LFO 1 or LFO 2. (This parameter is the same for both.)
Higher values result in a faster LFO modulation. This is a global control in that it affects
all modulation destinations (VCO 1/2, VCA, VCF) equally.
• LFO 1 / LFO 2 VCO1
(LFO 1 / LFO 2 to VCO 1 — Oscillator 1 Pitch Modulation Depth)
• LFO 1 / LFO 2 VCO2
(LFO 1 / LFO 2 to VCO 2 — Oscillator 2 Pitch Modulation Depth)
Range: -128 ... +127
This determines the degree to which the LFO 1 or LFO 2 affects the selected oscillator's
pitch. This produces a vibrato effect, or a quavering, vibrating sound in the voice, by reg-
ularly modulating the pitch. Higher values result in a stronger, more pronounced vibrato
sound.
Parameters /
Source, etc.), giving you even greater editing flexibility.
24
AN Expert Editor Main Window
PWM
Source,
Sync Pitch Control
Assign Group
parameter, the LFO 1 and LFO

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