Korg musical instruments

Controlling Pitch

AMS Mixer Amt AxB example

Smoothing

The Smoothing Type smooths out the AMS input,

creating more gentle transitions between values. You

have separate control of the amount of smoothing

during the attack (when the signal is increasing) and

decay (when it’s decreasing).

Low settings provide subtle controller smoothing,

creating more gradual aftertouch, for instance. Higher

settings create auto-fade effects, transforming a quick

gesture into a longer fade-in and/or fade-out event.

Smoothing can also be used to alter the shape of

programmable mod sources, such as LFOs and EGs.

For instance, you can turn a “blip” into a simple

envelope shape, as shown below.

AMS Mixer Smoothing examples

More AMS Mixer features

There are more mixer Types, including Offset, Shape,

and Quantize, which offer even more possibilities for

creative programming. For more details, see “6–1: OSC

1 AMS Mixer” on page 89 of the Parameter Guide.

Suggestions on using AMS

When making settings for alternate modulation, think

of the effect that you wish to produce, what type of

modulation will be necessary to produce that effect,

and what parameter of the oscillator, ﬁlter, or ampliﬁer

needs to be controlled.

Next, select a source (AMS) and set the Intensity. If

you proceed logically in this way, you will achieve the

desired effect.

For example, if you want to control a guitar sound so

that it approaches feedback when you move the

joystick, you might set up the joystick to modulate the

ﬁlter frequency and resonance.

Controller Setup page

For each program, this tab lets you make settings for

the SW1 and SW2 key, and for Real-Time Knobs 5-8.

For more information, see “Setting the functions of

SW1 and SW2” on page 180, and “1–8: Set Up

Controllers,” on page 45 of the Parameter Guide.

Controlling Pitch

Pitch bend

The JS (+X) and JS(–X) settings specify the amount of

pitch change (in semitones) that will occur when MIDI

pitch bend messages are received or when the joystick

is moved to left or right. A setting of +12 allows the

pitch to be controlled a maximum of one octave

upward; a setting of –12 allows the pitch to be

controlled a maximum of one octave downward.

Ribbon speciﬁes the amount of pitch change (in

semitones) that will occur when MIDI control change

(CC) #16 messages are received, or when you move

your ﬁnger left and right on the ribbon controller. With

a setting of +12, the pitch will be raised one octave at

the far right of the ribbon controller, and will be

lowered by one octave at the far left of the ribbon

controller.

Creating Vibrato

You can use an LFO to create vibrato.

LFO 1/2 Intensity sets the depth to which the selected

LFO will affect the pitch. With a setting of +12.00,

vibrato will produce a maximum of ±1 octave of pitch

change.

JS+Y Int speciﬁes the amount of vibrato that the LFO

will produce when the joystick is pushed away from

yourself.

Intensity (AMS Intensity) speciﬁes the depth of

vibrato that will be applied by the LFO when

modulated by the selected AMS (Alternate Modulation

Source). For example, if LFO1 AMS is set to After

Touch and you set an appropriate value for Intensity,

vibrato will be applied when you apply pressure to the

keyboard or when MIDI aftertouch messages are

received.

AMS A: LFO

AMS B: EG

Amt A*B Output

Original AMS A: Smoothing with Long Attack

and Short Release:

Smoothing with Short Attack & Long Release: