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:
- acoustic instruments
- FM sampled
- mathematically generated.
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.
AUDIO 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:
- Midi channel
- pitch detune
- transpose
- 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 (PC, commercial)
- Atari EMC editor (atari ST, ??)
MEMORY:
- 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.
|
AUDIO DEMO
Soundcloud 01w
Country: Japan
trend price : 200€
KEYBOARD
61 keys Main panel features a 240 x 64 pixels display,
37 buttons and 1 data slider. 
