Korg Sigma
Sigma
Released: 1979
MSRP: ?
Synopsis:
Monophonic "performing" synthesizer with presets and limited editing (a.k.a. KP-30).
Architecture Class: Conventional (subtractive).
Ebay Description:
The Korg Sigma is a 37 key (monophonic) synthesizer, featuring aftertouch, portamento, vibrato, CV I/O, and separate "Synthe" and preset "Instrument" sections. The "Synthe" section features a single oscillator (noise, saw, S/H, PWM, pulse, square waveforms) and low and high pass analog filters. The "Instrument" section features 11 presets (ElectricBass, Tuba, Clavi, FuzzGuitar, Horn, Trumpet, Clarinet, DoubleReed, String, Flute, HammeredPercussion) and an associated adjustable parameter (filter cut-off, attack, etc.).
Physical
Form Factor
Dimensions
Weight
Audio Input
Audio Output
Communication Port
Control Input
Control Output
Switch Input
Power
37 keys
W:774mm
D:400mm
H:173mm
11kg
no
Synthe Instrument
no
CV filter pitch trigger
CV trigger
sustain
AC:wired (17W)
Interface
Compatibility
Multitimbral Memory
Program Memory
External Storage
External Programming
UI Input
UI Output
-
N/A
Instrument:11
no
no
knobs switches
LED
Architecture
Multitimbral
Polyphony
Unison
Architecture
2
1
no
[VCO->VCA]+[VCO->VCF->VCA]
Output
Effects
Pan Modulator
Volume Modulator
Headphone
no
no
EGs
yes
Control
Arpeggiator
Arpeggiator External
Sequencer
Sequencer Memory
Sequencer External
Continuous
Program Change
no
N/A
no
N/A
N/A
joystick:2
no
Keyboard
Key Pressure
Chord Memory
External Control
External Sustain
Key Scaling
Velocity Curves
yes
no
no
no
no
N/A
Source
Name
Signal Class
Waveform
Octave Range
Amplitude Modulator
Harmonics Modulator
Pitch Modulator
Wave Assign Modulator
Synthe
analog
noise
saw
S/H
PWM
pulse
square
+-1 saw:32|8|4' S/H:16' PWM:16' pulse:8' square:8'
no
ring
aftertouch
joystick
portamento
Vibrato
no
Instrument
analog
preset:
ElectricBass
Tuba
Clavi
FuzzGuitar
Horn
Trumpet
Clarinet
DoubleReed
String
Flute
HammeredPercussion
+-1 ElectricBass:32' Tuba:32' Clavi:16' FuzzGuitar:16' Horn:16' Trumpet:8' Clarinet:8' DoubleReed:8' String:8' Flute:4' HammeredPercussion:4'
no
ring
aftertouch
joystick
portamento
Vibrato
no
Filter
Name
Signal Class
IC
Resonant
Shape
Frequency Modulator
Resonance Modulator
Shape Modulator
SyntheHPF
analog
?
no
high pass
joystick
no
no
SyntheLPF
analog
?
no
low pass
joystick
no
no
EectricBass
analog
?
no
low pass
no
no
no
Tuba
analog
?
no
low pass
no
no
no
Horn
analog
?
no
low pass
no
no
no
Trumpet
analog
?
no
low pass
no
no
no
Clarinet
analog
?
no
low pass?
no
no
no
DoubleReed
analog
?
no
low pass?
no
no
no
FuzzGuitar
analog
?
no
low pass?
no
no
no
Flute
analog
?
no
low pass?
no
no
no
Envelope
Name
Level
Rate
Loop
Polarity
Trigger
Level Modulator
Rate Modulator
NoiseEG
-
attack/release
no
no
no
no
no
Saw32EG
-
attack/release
no
no
no
no
no
PWMEG
-
attack/release
no
no
no
no
no
Saw8EG
-
attack/release
no
no
no
no
no
PulseEG
-
decay
no
no
no
no
no
SquareEG
-
attack/release
no
no
no
no
no
Saw4EG
-
decay
no
no
no
no
no
HammeredPercussionEG
-
decay
no
no
no
no
no
StringEG
-
attack
no
no
no
no
no
LFO
Name
Waveform
Delay
Polarity
Sync
Delay Modulator
Level Modulator
Rate Modulator
Vibrato
triangle?
no
no
no
no
aftertouch
no
