Korg NAUTILUS Series Parameter Manual page 95

Offset settings and pitch change produced by vibrato
Offset = –99 Offset = 0
Pitch
The one exception to this is the Guitar waveform, which is
designed to emulate bending a string on a guitar–so that the
pitch only goes up, and not down. Because of this, the
waveform is centered on 50, and not on 0. Of course, you
can always use a negative Offset to shift it back down below
0 again!
Since Offset affects the output values of the LFO, it's
important to note that it affects the signal after the Shape
function, as shown below:
LFO Signal Flow
Waveform Shape
Fade
The LFO can fade in gradually, instead of simply starting
immediately at full strength. This parameter specifies the
time from when the LFO begins to play until it reaches its
maximum amplitude.
If the Delay parameter is being used, then the fade will begin
after the delay is complete.
When Key Sync is Off, the fade will apply only to the first
note in the phrase.
LFO Fade and Delay
Delay Fade
Note-on
Delay
This sets the time from note-on until the LFO starts.
When Key Sync is Off, the delay applies only to the first
note of the phrase.
5–1b: Frequency Modulation
You can use two alternate modulation sources (AMS) to
adjust the speed of the LFO.
AMS1 (Frequency)
This selects the first modulation source for the LFO's
frequency. For a list of AMS sources, see "Alternate
Modulation Source (AMS) List" on page 901.
Note that you can use LFO2 to modulate LFO1's frequency.
Intensity
This sets the initial amount of AMS1. The Intensity Mod
AMS then adds to this initial amount.
Offset = +99
Offset
[00...99]
Note-off
[00...99]
[List of AMS Sources]
[–99...+99]
PROGRAM > LFO 5–1: OSC1 LFO1
When AMS1 is at its maximum value (for instance, when the
joystick is pushed all the way up), the AMS affects the
frequency as shown below:
Intensity Change to LFO Frequency
+99 64x
+82 32x
+66 16x
+49 8x
+33 4x
+16 2x
–16 1/2x
–33 1/4x
–49 1/8x
–66 1/16x
–82 1/32x
–99 1/64x
Intensity Mod AMS
This selects a secondary AMS modulation source to scale
the intensity of AMS1.
For a list of AMS sources, see "Alternate Modulation Source
(AMS) List" on page 901.
Intensity
This controls the depth and direction of the Intensity Mod
AMS. Even if the main AMS1 Intensity is set to 0, Intensity
Mod AMS can still control the final amount of AMS A over
the full +/–99 range.
For example, if AMS1 is set to the Pitch EG, and Intensity
Mod AMS is set to JS + Y, positive settings mean that
pushing the joystick away from yourself will increase the
intensity of the Pitch EG modulation of LFO Frequency.
AMS2 (Frequency)
This selects the second modulation source for the LFO's
frequency. For a list of AMS sources, see "Alternate
Modulation Source (AMS) List" on page 901.
Intensity
This controls the amount of modulation from AMS2.
5–1c: Frequency MIDI/Tempo Sync
MIDI/Tempo Sync
On (checked): The LFO will synchronize to the system
tempo, as set by either the Tempo knob or MIDI Clock. The
LFO speed will be controlled by the Base Note and Times
parameters, below. All settings for Frequency and
Frequency Modulation will be ignored.
Off (unchecked): The Frequency settings will determine the
speed of the LFO, and the tempo settings will have no effect.
Base Note
This sets a basic rhythmic value for the LFO speed, relative
to the system tempo. The values range from a 32nd note to a
whole note, including triplets. It applies only when
MIDI/Tempo Sync is On.
Faster
Slower
[List of AMS Sources]
[–99...+99]
[List of AMS Sources]
[–99...+99]
[Off, On]
[ ... ]
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