Korg R3 Manuel d'utilisateur télécharger pdf (Page 33)

Knob [1]

WAVE (Waveform Select)

[Saw, Pulse, Triangle, Sine, Formant,

Noise, DWGS, Audio In]

Selects the waveform for oscillator 1. The

Saw, Pulse (square), Triangle and Sine are

traditional waves associated with analog

synthesizers.

Saw: A sawtooth wave.

Pulse: A pulse wave.

Triangle: A triangle wave.

Sine: A sine wave.

Formant: A formant wave with tonal character-

istics similar to that of a human voice.

Noise: Generates noise.

DWGS: DWGS (Digital Waveform Genera-

tion System) waveforms. These digital

waves are created using harmonic additive

synthesis. Sixty-four DWGS waves are

available

Audio In: An external audio source will

be used in place of the oscillator.

The parameters of the PITCH section

will have no effect on the external au-

dio source connected to the [AUDIO

INPUT 1] or [AUDIO INPUT 2] jacks.

5. OSC1 (Oscillator 1)

The oscillator generates a waveform that is the basis of the sound. Each timbre has two oscillators. The parameters in this section apply to

oscillator 1. Knob [1] is used to select the basic waveform, and knob [2] to select a type of oscillator modulation. The functions of knobs [3] and

[4] will be determined by the settings of knob [1] and knob [2] (☞p.28 -29).

Knob [2]

OSC1 Mod (Oscillator 1 Modulation Type)

[Waveform, Cross, Unison, VPM]

Selects the type of modulation being applied

to oscillator 1.

The maximum number of playable

voices may change depending on the

combination of “Wave” and “OSC1

Mod” settings.

Waveform (Waveform Modulation): Use

“Control1” to modify the shape of the

waveform.

The following parameters (Cross, Uni-

son, VPM) are only available when the

“Wave” parameter is set to is Saw,

Pulse, Tri, or Sin, and are not available

if the “WAVE” parameter is set to

Formant, Noise, DWGS, or AudioIn.

Cross (Cross Modulation): Cross Modula-

tion uses the output waveform of oscillator 2

(the modulator) to modulate the frequency

of oscillator 1 (the carrier) at high speed to

produce a modulated sound. The waveform

selected by “Wave” will be the carrier

(☞Figure 5-1).

(j )

Knob [2] (l)

Unison: Unison simulates skewing the pitch of

five stacked oscillators from within a single

oscillator, to create a richer sound. Unlike the

unison SW parameter from the 2. Unison page,

this function does not require additional po-

lyphony.

VPM (Variable Phase Modulation) :

VPM produces metallic-sounding overtones,

using a sine wave at a harmonic (integer) mul-

tiple of oscillator 1’s fundamental to modulate

the phase of oscillator 1.In contrast to Cross

Modulation which produces sounds that have

a modulating character, VPM waveforms re-

main static as the new overtones are added.

Oscillator 1 relies on its own sine

wave gen-

erator, so unlike Cross Modulation, oscil-

lator 2 has no effect on VPM.

Knob [4]

OSC1Ctr2 (Control2)

[000...127/–63…+63/

001…064/001…032/---]

The function controlled by this knob is de-

termined by the “Wave” and “OSC Mod”

settings. (☞p.28)

Knob [3]

OSC1Ctr1 (Control1)

[000...127/–63…+63/---]

The function controlled by this knob is de-

termined by the “Wave” and “OSC Mod”

settings. (☞p.28)

With some settings, this will produce

noise.

Figure 5-1: Cross Mod

OSC2

OSC1

Cross Mod Depth

OSC2

output

OSC1

output

OSC1

Freq Mod

Figure 5-2: Unison Mod

OSC1–1

OSC1–2

OSC1–3

OSC1 Output

Unison Detune

OSC1–4

OSC1–5

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 93 94

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Korg R3 Manuel d'utilisateur Page 33

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