Korg Electric Keyboard manual 26 St.BiphaseMod, 27 St.Vibrato, 178, Stereo Biphase Modulation

26: St.BiphaseMod

(Stereo Biphase Modulation)

This stereo chorus effect adds two different LFOs together. You can set the Frequency and Depth parameters for each LFO individually. Depending on the setting of these LFOs, very complex waveforms will create an analog-type, unstable modulated sound.

Stereo In - Stereo Out

Left

Wet / Dry

Chorus/Flanger

High Damp

Feedback

High Damp

Chorus/Flanger

Right

Wet / Dry

180 [degree]

LFO1: Tri / Sine

LFO2: Tri / Sine

a	LFO1 Wave (LFO1 Waveform)		Triangle, Sine
	Selects LFO1 waveform
b	LFO2 Wave (LFO2 Waveform)		Triangle, Sine
	Selects LFO2 waveform
c	LFO Phase Sw		0, 180degree
	Switches the LFO phase difference between left and right
	F1 (LFO1 Frequency)		0.02...30.00Hz
	Sets the LFO1 speed
d	(Source)		Off...Tempo
	Selects the modulation source of LFO1&2 speed
	(Amount)		–30.00...+30.00
	Sets the modulation amount of LFO1 speed
	F2 (LFO2 Frequency)		0.02...30.00Hz
e	Sets the LFO2 speed
	(Amount)		–30.00...+30.00
	Sets the modulation amount of LFO2 speed
	L Dly (L Pre Delay)		0.0...50.0ms
f	Sets the delay time for the left channel			☞ Fx:16
	R Dly (R Pre Delay)		0.0...50.0ms
	Sets the delay time for the right channel			☞ Fx:16
	Depth1		0...100
	Sets the depth of LFO1 modulation
g	(Source)		Off...Tempo
	Selects the modulation source of LFO1&2 modulation depth
	(Amount)		–100...+100
	Sets the modulation amount of LFO1 modulation depth
	Depth2		0...100
h	Sets the depth of LFO2 modulation
	(Amount)		–100...+100
	Sets the modulation amount of LFO2 modulation depth
	Feedback		–100...+100
i	Sets the feedback amount			☞ Fx:17
	HiDamp (High Damp)		0...100%
	Sets the damping amount in the high range
	W/D (Wet/Dly)	–Wet...–1:99, Dry, 1:99...Wet
	Sets the balance between the effect and dry sounds
		☞ Fx:10,
j	(Source)		Off...Tempo
	Selects the modulation source of the effect balance
	(Amount)		–100...+100
	Sets the modulation amount of the effect balance
		Bi-Phase Modulation LFO

LFO1

Depth1 +

LFO2

Depth2

27: St.Vibrato

(Stereo Vibrato)

This effect causes the pitch of the input signal to shimmer. Using the AutoFade allows you to increase or decrease the shimmering speed.

Stereo In - Stereo Out
Left		Wet / Dry
		Vibrato
		Vibrato
Right		Wet / Dry
LFO: Tri / Sine	LFO Shape
AutoFade	Fade-In Delay	LFO Frequency

	LFO Wave (LFO Waveform)		Triangle, Sine
a	Selects LFO Waveform
	Shape (LFO Shape)		–100...+100
	Determines how much the LFO waveform is changed		☞ Fx:20
	LFO Freq Mod (LFO Frequency Mod)	Dmod, AUTOFADE
b	Switches between Dmod and AUTOFADE for the LFO frequency
	modulation			☞
	Freq (LFO Frequency)		0.02...20.00Hz
	Sets the LFO speed	☞ Fx:09,
c	(Source)		Off...Tempo
	Selects the modulation source of LFO speed
	(Amount)	–20.00...+20.00Hz
	Sets the modulation amount of LFO speed
	BPM/MIDI Sync		Off, On
	Switches between using the frequency of the LFO speed and using
	the tempo and notes	☞ Fx:09,
	BPM		MIDI, 40...240
d	Selects MIDI Clock and assigns tempo		☞ Fx:09
	Base (Base Note)		☞ Fx:09
	Selects the type of notes that specify the LFO speed
	Times		1...16
	Sets the number of notes that specify the LFO speed		☞ Fx:09
	Depth		0...100
	Sets the depth of LFO modulation
e	(Source)		Off...Tempo
	Selects the modulation source of the LFO modulation depth
	(Amount)		–100...+100
	Sets the modulation amount of the LFO modulation depth
f	AUTOFADE Src (AUTOFADE Source)		Off...Tempo
	Selects the modulation source that starts AutoFade		☞ ,
	Fade Rate (Fade-In Rate)		1...100
g	Sets the rate of fade-in			☞
	Dly (Fade-In Delay)		00...2000ms
	Sets the fade-in delay time			☞
	W/D (Wet/Dly)	Dry, 1:99...99:1, Wet
	Sets the balance between the effect and dry sounds
h	(Source)		Off...Tempo
	Selects the modulation source of the effect balance
	(Amount)		–100...+100
	Sets the modulation amount of the effect balance

b:LFO Freq Mod, f: AUTOFADE Src, g: Fade Rate, g: Dly

When “LFO Freq Mod” is set to AUTOFADE, you can use the modulation source selected in “AUTO FADE Src” as a trigger to automatically fade in the modulation amount. When “BPM/MIDI Sync” is set to On, you cannot use this.

The “Fade Rate” parameter specifies the rate of fade-in. The “Dly” parameter determines the time from AutoFade modulation source ON until the fade-in starts.

The following is an example of fade-in where the LFO speed is increased from “1.0Hz” to “4.0Hz” when a note-on message is received.

“AUTOFADE Src”=Gate1, “Freq”=1.00 Hz

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