Korg Prophecy

Solo Synthesizer (1995) 

A complex machine with virtually infinite sounds based on MOSS technology: a mix of virtual analog and acoustic emulation.


OVERVIEW 37 velocity keys with aftertouch. The main panel features a 40 X 2 lines display, 7 knobs and 40 push buttons. In addition 5 assignable knobs for real-time parameters, 2 wheels for pitch bending and modulation with an extra special 3-axis wheel with ribbon control.

-Korg Z1: a kind of polyphonic version with some differences
-Korg SOLO-TRI board optional adds MOSS synthesis to Trinity keyboards.

Terminal connectors:
- card slot for memory card
- stereo signal out
- Midi interface IN OUT THRU
- input for special EC-5 external controller
- footswitch input


OSCILLATORS TECH CPU UPD-70433GD + H8 (3003) manage 1 voice based MOSS Multi Oscillator Synthesis System - MOSS synthesis is complicated but offers great sonic possibilities aimed to emulate modelled acoustic brass and reed instruments.
A Prophecy patch can be created using 4 elements:
 - MOSS digital oscillator 1 (5 v.a models)
- MOSS digital oscillator 2 (same models)
- digital white noise
- suboscillator 4 shapes: sinewave, square, sawtooth and triangle.

MOSS OSCILLATOR each digital MOSS oscillator can be set to 1 of the 7 V.A models: 4 Virtual Acoustic sound generations + 1 special VA "APM" with 3 submodels.Then sound generators can be chained in pair following 12 algorithms.

Standard Osc

Virtual analog emulation of traditional analog synthesis based on DSP basic waveforms: sawtooth, triangle and rectangular with variable width.

Comb filter Osc is a comb generated filter, feedback loop with lowpass filter that extracts harmonics contents out of a white noise.

 VPM frequency modulation based on simple 2OP Operators structure modulated by waveshaping process: a waveform amplitude distortion that alters the harmonic spectrum contents, previously implemented 01W synthesizer.

Modulation Osc is a classic modulation processor able to create ring modulator, frequency sync and crossmodulation between oscillators.

Acoustic physical modeling (APM)

Acoustic instruments physical recreation characteristics like air pressure into reed or brass instruments with variable sound articulations and expressions controls.This physical modeling generates 3 submodels: pluck, reed and brass.

APM Pluck Osc an ihnarmonic generation of plucked waves like guitar of bass models. Typical parameters are: pluck attack intensity, based on finger to plectrum, bridge simulation with variable inharmonic contents.

APM Reed model emulates reed instruments characteristics e.g air pressure, noise and modulation or breath. 13 reed templates ready to go including oboe, saxophone and recorder.

APM Brass model offers 3 main parameters definitions:
- Pressure defines the breath strength
- Lip simulates the lips tension on the instruments changing the sound color.
- Bell attenuates the tone signal, like muted brass instruments. 

LFO up to 4 delayed digital modulators, frequency range from 0 to 60 Hz also syncable to external Midi clock like sequencer or drum machines. A vast array of 26 LFOs shapes with variable start phase offset.

FILTER features 2 identical filters at -12d/B octave combined in both serial or parallel way.
Each filter can be set to a 1 of 3 filter modes:
lowpass/ highpass /bandpass and reject.

Memory and effects

ENVELOPE up to 6 EGs, 4-segments structure + 5 time levels:
The Prophecy response also features 8 dynamic curves.
EG - EG 1 is routed to amplitude
- EG 2 is routed to pitch
- EG 3-4-5-6 are freely assignable to *quite* any parameters

EFFECTS DSP generates 7 models: distortion, wah, EQ, chorus, flanger, delay and reverb.

ARPEGGIATOR 5 preset patterns, adjustable velocity and gate length and 3 directions: up, down and random.
Both arpeggiator and LFO can be synched to external Midi clock, but it is reported that earlier Prophecy operating systems OS have some tempo issues.

MEMORY single custom arpeggio slot  + 128 editable memory patches    +  64 others on S-Ram card model Korg SCR-512.
->Reset procedure  Go to "GLOBAL" screen 19 then press "ENTER".  Patches should reset also. 
->OS DOWLOAD Last eprom sets (2) are OS #20. firmware update - A very NICE gift from Edward
DOWNLOAD -TMS 27C240-10 + TMS 27C210A-10 OS DUMP package V1.6 + V2.0

Korg Prophecy Specifications

Company: Korg
Model: Prophecy
Country: Japan
Class: synthesizer
Keyboard: 37 keys
Dates: 1995
Display: 40 X 2 lcd
Technology: MOSS
Synthesis: virtual acoustic
Algorithms: 12 models
Polyphony: 1 voice
Multimbral: 1 part
Oscillators: 2
Filter: 2 X LPF / HPF / BPF
LFO: 4 modulators
Envelope: 6 Egs
Effect: 7 models
Arpeggiator: yes
Sync: Midi clock
Memory: 128 Slots
Midi: IN / OUT / THRU
CPU: UPD-70433GD + H8
Weight: 5,7 Kg
Dimensions: 740 (w) x 280 (h) x 100 (d) mm
Trend price : 250€

prophecy cat by Traxlermusicofficial

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Korg Prophecy KORG
monophonic virtual analog synthesizer. 123456789 1234567890123
72 out of 100 based on 31 user ratings
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Product description: 37 keys portable machine used by prodigy. Customer reviews:
Today very obsolete - by , April 1, 2011
3/ 5stars