Yamaha PLG150-AN Owner's Manual download pdf (Page 41)

Parameters / AN Expert Editor Main Window

VCO 2 PWM (Pulse Width Modulation) Parameters

• The PWM parameters are not available when the VCO 2 WAVE is set to “Triangle” or “Sine.”

• VCO 2 PWM SRC (Pulse Width Modulation Source)

Settings: Fixed, PEG, FEG, LFO 1, LFO 2, LFO 2 Phase, LFO 2 Fast, VCO 1

• Parameter settings in italics above can only be selected by using the DATA DEC/INC buttons.

With the exception of “VCO 1” (VCO 2 cannot be used to modulate itself!), these settings

are the same as those of VCO 1 PWM SRC.

• VCO 2 PWM DEPTH (Pulse Width Modulation Depth)

• VCO 2 PWM PW (Pulse Width)

These parameters are the same as those of VCO 1.

• When the VCO 2 Wave is set to “Triangle” or “Sine,” the VCO 2 PWM PW parameter has no

effect.

X-MOD Parameters

The X-MOD (cross-modulation) parameters are available only when the VCO 2 WAVE is

set to “Triangle” or “Sine.” Whereas the PWM parameters use a source to modulate the

pulse width of the oscillator, X-MOD is similar to FM in that it modulates the frequency of

the oscillator, generating a complex set of harmonics. The control source for the Depth of

the modulation can be selected from: PEG, FEG, LFO 1, or LFO 2. The actual modulator

for cross-modulation is ﬁxed to VCO1.

• The harmonics that X-MOD generates are different from those of FM because of the method

used: FM modulates in a logarithmic fashion, while X-MOD modulates in a linear fashion.

• X-MOD SRC (Cross-modulation Depth Control Source)

Settings: Fixed, PEG, FEG, LFO 1, LFO 2

This determines the source wave which changes the Cross Modulation Depth over time.

When this is set to “Fixed,” there is no change in modulation depth over time. This

parameter is available only when the VCO 2 WAVE is set to “Triangle” or “Sine.”

• X-MOD DEPTH

Range: -64 ... +63

This determines the amount of depth of the cross-modulation of the VCO 2. Higher (pos-

itive) values produce a deeper modulation of the frequency. This parameter is available

only when the VCO 2 WAVEVCO2Wave is set to “Triangle” or “Sine.”

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Yamaha PLG150-AN Owner's Manual Page 41