SOUND Synthesizer based on a 16 bits NEC V50 (μPD70216) CPU manages 32 voices polyphony based on Korg AI2 synthesis with Burr Brown PCM55HP DAC.
A basic patch is composed 1 or 2 samples (oscillators) that can be set in 2 manners:
1- single: 1 oscillator per sound
2- double: 2 oscillators per sound.
Just a few oscillator parameters can be edited including: volume, tuning, panning and delay startwave.
WAVETABLE internal 6 MB ROM contains 255 PCM coded at 32 kHz wavetable including 3 kinds of samples categories:
- FM sampled
WAVESHAPER digital process changes the harmonics contents of a sample distorting it with 59 cycled waveforms waveshapes each with specific spectral harmonics. Waveshapes are not really editable except for the shaping envelope and the amount applied to the sample.
EXAMPLE MP3 clip the wave sinewave starts with no waveshaper then processed with same EG through the 59 waveshapers one after one. Below how the waves changes.
PERFORMANCE system manages 8 combination parts and some individual parameters:
volume / pan
- split zone
- analog out.
LFO 3 digital modulators MGs:
1- MG1 modulates oscillator 1
2- MG2 modulates oscillator 2
3- MG3 modulates filter VDF cutoff (the MG VDF can be activated individually to OSC1 or OSC2).
Some extra LFO functions like delay start, note retrig, modulation by aftertouch and ajustable depth.
5 possible waveforms: triangle, saw-up, saw-down, square and random.
ENVELOPE 5 digital EGs:
- EG VDA 1 amplitude for oscillator 1: 4 segments EG + 3 times
- EG VDA 2
amplitude for oscillator 2: 4 segments EG + 3 times
- EG VDF filter: 4 segments EG + 3 time
- EG pitch: 3 segments model + 3 times.
FILTER the VDF is a digital 2-poles lowpass filter, the emphasis Q emulation acts as resonance replacement (same as KORG M1) Extra Keytrack function for cutoff.
EFFECT double engine processors at 16 bits in serial or parallel mode.
This section offers 47 different effects such as reverb, delay, overdrive, EQ, chorus, rotary speaker and some combo of them.
SEQUENCER workstation features 16 tracks recordable by real-time or step by step mode. Recording system handles various handy functions such as: OVERWITE, PUNCH IN, LOOP, OVERDUB, TRANSPOSE, FILTER EVENT, BOUNCE, COPY TRACK, VELOCITY MODIFY.
SYNC sequencer can be set to external or internal Midi clock in master or slave mode.
EDITOR some computer-based editors for 01w 01W/FD and 01R/W:
- Midiquest (PC/MAC, commercial)
- Soundtower 01wEditPro
- Atari EMC editor (atari ST, ??)
200 RAM patches
- 200 RAM combi
- 10 songs
- 7000 notes
(48.000 on FD model)
RAM doubled using l RAM card Korg SRC-512.
TECH: RAM works with a CR-2032 battery in a holder.
MAINTENANCE there are 3 common issues I had with 01RW: WARNING: IC location may be different on keyboard 01!
1-after some years the screen may disappear as well as sound generation. S some bad capacitors leak inside creating corrosion around tracks, some luck there is no custom KORG IC around, I had to replace these: C85, C29 and C30, C102, C103 and C130.
It seems that NOT all series suffer from this problem
2- display backlight: after many years the LCD fades out you have to replace the E-foil, quite easy to do requiring some basic soldering skills.
3- Fd drive may not work, try cleaning the heads with proper liquid solution.
01 FAMILY RELATED MODELS :
01 FAMILY ALL MODELS:
-01/RW –rackmount version
-01/Wpro – 76 keys version with drive and an extra piano wavetable
-01/WproX – 88 versions weighted, drive and special piano wavetable.
10 Mb with some extra sampled piano and more drum PCM waveforms
Korg 03rw is the little brother, compact. It misses the Waveshaper feature.
VST PLUGIN / SAMPLED VERSION free and commercial samples set: