Korg NAUTILUS Series, Parameter Manual, Page: 307 / 961

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EXi: MOD-7 Waveshaping VPM Synthesizer
MOD-7 Overview
The MOD-7 is a powerful, semi-modular synthesizer,
combining Variable Phase Modulation (VPM),
waveshaping, ring modulation, PCM sample playback, and
subtractive synthesis. Exceptionally versatile, the MOD-7
produces everything from classic FM keyboards and bells to
rhythmic soundscapes, from cut-through-the-mix synth
basses to sparkling, epic pads.
VPM refers to Korg’s patented contributions to Frequency
Modulation (FM) synthesis; for more information, see
“VPM and FM Synthesis” on page 301.
Features include:
• Six VPM Oscillators. Each can be used as a sine, saw,
triangle, square, or waveshaping oscillator with FM and
ring modulation, or as a waveshaping and/or ring mod
processor for other signals.
• 101 different waveshaping tables, whose response can be
controlled via modulatable drive and offset.
• A PCM sample playback oscillator using Korg’s ultra-
low-aliasing PCM technology, as first introduced in the
HD-1. This supports four-way velocity-switching
between any mono samples from ROM, EXs,
SAMPLING mode, or User Sample Banks.
• Dual multi-mode resonant filters (including Korg’s Multi
Filter, as first introduced in the AL-1).
• Three patchable, modulatable 2-in, 1-out mixers for
combining and scaling audio signals.
• Noise generator with dedicated filter and saturation.
• Live audio input.
• Patch Panel allows free connection of all components,
including the six VPM Oscillators, PCM oscillator, noise
generator, real-time audio input, three modulatable
mixers, and two filters. Connections can include multiple
cables from a single output, hybrid serial/parallel
routings, and feedback paths.
• “Vast” sample-mangling capabilities, with incredible
flexibility and power. Use samples as FM modulators,
and create incredibly rich processing environments
combining multiple stages of filtering, waveshaping, and
ring modulation, patched together however you’d like.
• Up to 52 voices of polyphony.
• Import classic FM sounds from the DX7.
• Four per-voice LFOs, ten re-triggerable EGs, nine key-
tracking generators, eight AMS mixers, and a per-voice
step sequencer.
• Access to all standard EXi Program features, including
the Common LFO, Common Step Sequencer, Key Track
1 & 2, Arpeggiator, EQ, and effects–as well as layering
with any other EXi (including two MOD-7s together, for
12 VPM oscillators!)
MOD-7 uses EXi fixed resources
The MOD-7 uses EXi fixed resources for its audio input.
This takes up a very small amount of processing power, even
if you’re not playing any notes on the keyboard. The amount
is tiny–around 1/96 that of the CX-3–but if other EXi are
using large amounts of fixed resources, the number of MOD-
7 that you can load in a Combination or Song may be
limited.
Each EXi in each Program counts towards the maximum; for
instance, a Program with two MOD-7s counts as two, not as
one.
For more information, see “CX-3 & other EXi: Limitations
on EXi fixed resources” on page 380.
Unsupported EXi Common parameters
The MOD-7 supports all of the EXi Common parameters,
except for two of the voice allocation options:
Poly Legato
and Mono Mode (Normal/Use Legato Offset).
All of the other voice allocation options are fully supported,
including Mono, Mono Legato, Unison, etc.