Korg NAUTILUS Series, Parameter Manual, Page: 335 / 961

PROGRAM > MOD-7: Oscillator 5–4: VPM Osc1
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5–4: VPM Osc1
The six VPM Oscillators are the main tools of the MOD-7,
and can be used in various ways for both generating
waveforms and processing audio. For general information
about these different possibilities, please see “Synthesis with
the MOD-7: a guided tour” on page 301.
This page controls all aspects of the VPM Oscillator,
including:
• Whether it will function as an oscillator on its own, or as
a waveshaper or ring modulator for other signals
• All FM-related controls, including input levels, oscillator
phase, feedback, and ratio, along with modulation for
feedback and pitch
• All waveshaping-related controls, including table
selection, drive, offset, keyboard slope, and modulation
for drive and offset
• Ring mod crossfade modulation
• Output level and modulation, including keyboard
tracking, EG selection, and velocity sensitivity
5–4a: Main
Mode [Off, Sine, Saw, Triangle, Square,
Sine + Waveshaper, Waveshaper,
Ring Mod Only]
This selects the basic functionality of the VPM Oscillator.
Depending on the selected Mode, other parameters in the
VPM Oscillator may be grayed out.
The Mode also affects the required processing power.
Triangle , Square , and Sine + Waveshaper need the most
power, and using them may result in slightly lower
polyphony.
Off requires no processing power at all.
Off: This completely disables the VPM Oscillator. If you’re
not using the VPM Oscillator at all, set its Mode to Off in
order to save processing power.
Sine: This includes a sine oscillator followed by a one-pole
lowpass filter and a ring modulator. Sine is the default
setting, used for classic FM sounds. Even when using more
complex waveforms for FM Modulators,
Sine is still the
normal setting for an FM Carrier.
Saw: This mode uses FM feedback to create a sawtooth
waveform. As with Sine, it includes a one-pole lowpass filter
after the oscillator, as well as a ring modulator.
Triangle: This mode uses the oscillator to create a triangle
waveform, followed by the ring modulator.
Square: This mode uses the oscillator to create a square
waveform. There’s still a ring modulator before the output.
5–4PMC
5–4a
5–4b
5–4c
5–4g
5–4d
5–4e
5–4f
Off
Sine
Saw
Triangle
Square