Korg PA50 Manuel D’Utilisation

Filter/Dynamic

This effect adds very low frequencies to the input signal. It is
very useful when simulating a roaring drum sound or
emphasizing powerful low range. This effect is different from
the equalizer in that you can add very low range harmonics.
You can also adjust the oscillator frequency to match a partic-
ular note number, for use as an octaver.

a: OSC Mode, b: Note Interval, b: Note Fine
The “OSC Mode” parameter selects the oscillator opera-
tion mode. When Note (Key Follow) is selected, the oscil-
lator’s frequency is determined based on the note
number, allowing you to use it as an octaver. The “Note
Interval” parameter sets the pitch offset from the original
note number by semitone steps. The “Note Fine” parame-
ter allows you to fine-tune in steps of cents.
d: Envelope Pre LPF
This parameter sets the upper limit of the frequency range
to which very low harmonics are added. Adjust this
parameter if you do not want to add lower harmonics to
the higher range.

This effect adds an unusual character, like a human voice, to
the input signal. Modulating the tone via dynamic modula-
tion, you can create an interesting effect that sounds as if the
guitar or synthesizer is talking.

c: Voice Top, d: Voice Center, e: Voice Bottom
These parameters assign vowels to the top, center, and
bottom position of the controller.
E.g.: When “Voice Top”=A, “Voice Center”=I, and “Voice
Bottom”=U:
If “Sweep Mode ”is set to D-mod and Ribbon is selected as
the modulation source, moving your finger from the right
to left of the ribbon controller will change the sound from
“a” to “i,” then “u.”

a

OSC Mode

Note (Key Follow), Fixed

Determines whether the oscillator frequency follows the note number or 
whether it is fixed

☞

b

Note Interval

–48...0

Sets the pitch difference from the note number when OSC Mode=Note (Key 
Follow)

☞

Note Fine
Fine adjustment of the oscillator frequency

–100...+100

☞

c

Fixed Frequency [Hz]

10.0...80.0Hz

Sets the oscillator frequency when OSC Mode=Fixed

Src

Off...Tempo

Selects the modulation source for the oscillator frequency when OSC 
Mode=Fixed

Amt

–80...+80Hz

Sets the oscillator frequency modulation amount when OSC Mode=Fixed

d

Envelope Pre LPF

1...100

Sets the upper limit of the frequency range for which very low harmonics are 
added

☞

e

Envelope Sens (Envelope Sensitivity)

0...100

Sets the sensitivity with which very low harmonics are added

Envelope Shape
Sets the oscillator’s volume envelope curve

–100...+100

f

Wet/Dry

Dry, 1:99...99:1, Wet

Src

Off...Tempo

Amt
Table , “Sets the modulation amount of the effect bal-
ance,” on page 175

–100...+100

a

Sweep Mode

D-mod, LFO

Switches between modulation source control and LFO control

b

Manual Voice Control

Bottom, 1...49, Center, 51...99, Top

Voice pattern control

Src

Off...Tempo

Selects the modulation source that controls the voice pattern

c 

Voice Top
Selects a vowel sound at the top end of control

A, I, U, E, O

☞

d

Voice Center
Selects a vowel sound in the center of control

A, I, U, E, O

☞

e

Voice Bottom

A, I, U, E, O

Selects a vowel sound at the bottom end of control

☞

f

LFO Frequency [Hz]

0.02...20.00Hz

Sets the LFO speed

☞

 Fx:009,

Src
Selects the modulation source of LFO speed

Off...Tempo

Amt

–20.00...+20.00Hz

Sets the modulation amount of LFO speed

g

BPM/MIDI Sync

Off, On

Switches between using the frequency of the LFO speed and using the 
tempo and notes

☞

 Fx:009, 

BPM
Selects MIDI Clock and assigns tempo

MIDI, 40...240

☞

 Fx:009

Base Note

             

Selects the type of notes that specify the LFO speed

☞

 Fx:009

Times

x1...x16

Sets the number of notes that specify the LFO speed

☞

 Fx:009

h

Formant Shift

–100...+100

Sets the frequency to which the effect is applied

☞

Resonance
Sets the Level of resonance of the voice pattern

0...100

☞

i

Wet/Dry

Dry, 1:99...99:1, Wet

Src

Off...Tempo

Amt
Table , “Sets the modulation amount of the effect bal-
ance,” on page 175

–100...+100

+