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Appendices
MS-20EX Program Oscillators
PolysixEX
Program
MOD-7 Program
258
Ultra-low-aliasing oscillators.
VCO1, VCO2, Ring Mod, Pink and White Noise Generator.
Audio Input
Run real-time audio through the synthesis engine and ESP (External Signal Processor).
Filters
12 dB/octave High Pass and Low Pass self-resonant filters.
ESP section: 24 dB/octave Low Cut and High Cut filters, available per voice.
Patch Panel
Patchable audio and modulation, at audio rates.
Patch Points
Keyboard: Keyboard CV Out, Keyboard Trigger Out, VCO1+VCO2 CV In, VCO2 CV In
VCO: VCO1+VCO2 External Frequency Control In, VCO1 Out*, VCO2 Out*
VCF: External Signal In, External HP Filter Cutoff Frequency Control In, External LP Filter Cutoff
Frequency Control In, HPF Out*, LPF In*, LPF Out*
VCO+VCF: Total External Modulation In
VCA: External Initial Gain Control In, VCA In*
EG: EG1 Envelope Signal Normal Out, EG1 Envelope Signal Reverse Out, EG1+EG2 Trigger In, EG1
Trigger In, EG2 Envelope Signal Reverse Out
MG: Triangle Out, Rectangle Out
Noise Generator: Pink Noise Out, White Noise Out
Sample and Hold: Clock Trigger In, Sample Signal In, S/H Out
Modulation VCA: Control Voltage In, Signal In, Signal Out
Manual Controller: Control Wheel Out, Momentary Switch
* New patch points not provided
ESP: Signal In, AMP Out, BPF In, BPF Out, F-V CV Out, Envelope Out, Trigger Out
on the original MS-20.
Others: EXi Audio In*, Mixer 1 In*, Mixer 1 Out*, Mixer 2 In*, Mixer 2 Out*
ESP
Use incoming audio as a trigger and/or CV source.
(External Signal Processor)
Modulation
MS-20: Original DAR and HADSR EGs 1 & 2, original MG (with MIDI sync), Sample-and-Hold, MVCA.
NAUTILUS: 4 additional multi-stage Envelopes, 4 additional per-voice LFOs, and 4 AMS Mixers.
Oscillators
VCO: Saw, Pulse, PWM
Sub Oscillator: Off, 1 octave below, 2 octaves below
Filter
24 dB (4-Pole) Low Pass self-resonant filter
Effects
Integrated Polysix Chorus, Phase, and Ensemble.
Arpeggiator
Integrated MIDI-synced arpeggiator, with adjustable Range, Mode, and Latch.
Modulation
Polysix: Original ADSR EG and MG (with MIDI sync).
NAUTILUS: 2 additional multi-stage Envelopes, 2 additional per-voice LFOs, and 4 AMS Mixers.
Waveshaping VPM
Combines Variable Phase Modulation (VPM), waveshaping ring modulation, PCM sample playback,
Synthesizer
and subtractive synthesis.
Able to convert-load SYX files.
Oscillators
6 VPM/Waveshaper/
Ring Modulation
Oscillators
PCM Oscillator
Noise generator with saturation and dedicated low pass filter.
Audio input
Run real-time audio through the VPM Oscillators and filters.
Filters
Dual multi-mode filters per voice (Low Pass, High Pass, Band Pass, and Band Reject modes).
Two types of filter routing (parallel, 24 dB (4-pole)).
Multi Filter mode (Filter A only):
Modulatable mix of Low Pass, High Pass, Band Pass, and dry input, for creating a wide variety of
unique filter types and effects.
Patch Panel
Supports both algorithm (78 types) selection and free patching.
Three 2-in, 1- out mixers for scaling and merging audio, fully modulatable, with phase inversion.
Main 6-input stereo mixer, with modulatable pan and volume, plus phase inversion.
Modulation
10 Envelopes, 4 per-voice LFOs, 9 Key Tracking generators, Per-voice Step Sequencer, 4 standard
AMS Mixers plus 4 simple AMS Mixers.
Phase and modulatable pitch per oscillator.
101 Waveshaper tables plus modulatable Drive and Offset.
Use as oscillators, or as Waveshapers or Ring Modulators for other signals.
Korg's ultra-low-aliasing technology, as introduced in the HD-1.
4 velocity zones per oscillator.
Uses any mono Multisamples, including ROM, EXs, User Sample Bank, or
SAMPLING mode. Supports Virtual Memory.
PCM can be used as an FM modulator and/or layered with the VPM
Oscillators.
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