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EXi: MS-20EX
MS-20EX Overview
The MS-20EX is a flexible, semi-modular virtual analog
synthesizer. At its heart is a faithful re-creation of the
original KORG MS-20, including both its features and
its distinctive, often aggressive timbral signature.
To this core, we added features first introduced in the
KORG Legacy MS-20 plug-in. Then, we added
significant patch-panel modifications inspired by the
MS-20’s big brother, the MS-50, plus many other
OASYS-only enhancements. Features include:
• Korg’s proprietary CMT (Component Modeling
Technology)
• Up to 48-voice polyphony
• Two oscillators (including ring modulation), noise
generator, and resonant, self-oscillating highpass
and lowpass filters
• Many modifications to the Patch Panel, including
separate access to VCOs 1 & 2, LPF, HPF, BPF, and
VCA
• Two new patchable 2-in, 1-out audio-rate mixers,
for combining and scaling audio and control signals
• Original MS-20 HADSR and DAR envelopes, plus
four additional multi-stage EGs
• Original MS-20 MG and sample-and-hold, plus
four additional LFOs
• AMS modulation of all original MS-20 parameters,
along with four AMS Mixers
• Live audio input
• External Signal Processor, with dedicated filters,
triggering, and audio-to-CV conversion
• Access to all standard EXi Program features,
including the Common LFO, Common Step
Sequencer, Key Track 1 & 2, KARMA, EQ, and
effects–as well as layering with any other EXi
(including using two MS-20EXs together!)
MS-20EX uses EXi fixed resources
The MS-20EX takes up a very small amount of
processing power, even if you’re not playing any notes
on the keyboard. This amount is around 1/12 that of
the CX-3, but if other EXi are using large amounts of
fixed resources, the number of MS-20EX that you can
load may be limited. Each EXi in each Program counts
towards the maximum; for instance, a Program with
two MS-20EX’s counts as two, not as one.
For more information, see “CX-3 & STR-1: Limitations
on EXi fixed resources” on page 326.
LFO1
LFO1
EG2
Noise
LFO1
LFO1
LFO1
LFO 1-4
LFO1
LFO1
LFO1
EG 3--6
VCA EQ
Audio
Input
LFO1
AMS
Mixer 1-4
MS-20EX Overview
VCO 1
Audio, per-voice
Legend
Audio,
per-Program
Modulation
Audio
Modulation
EG1
VCO 2
HPF LPF
VCO
Mixer
MG
Mixer 1
Mixer 2
S&H MVCA
HPF &
LPF
Audio-to-
CV
Env
Follower
Amp
External Signal Processor
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