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Korg DSM-1

 

 

 

Korg DSM-1

info Country: Japan
Weight: 11, 5 Kg Kg
Dimensions: 433 x 134 x 430 mm
audio demo trend price : 250€
manual demo video comments

Korg DSM-1
Digital Sampling Synthesizer Module (1987)

 

A rackmount sampler derived from keyboard version model Korg DSS-1 with some enhancement- but also some misses from the original machine.

display dsss1
edit functions

info MODULE SAMPLER 3 rack height units.
The main panel features a 2 x 20 LCD backlit display (with contrast adjust ) 3 knobs and 32 buttons.

Rear panel terminal connectors:
- mix analo out
- 16 AUX analog outs
- Midi interface with ked activity

Front panel terminal connectors:
- signal audio input with gain knob and impedance switch
- head phones out
- footswitch control to playback a sound.

 

 


edit
TECH main core based on 8 bits CPU HD64180 manages 16 voices polyphony, each voice is composed by 1 digital oscillators with an assigned sampled or digitally generated sound.

structure DSM1 features 2 kind of syntheses:

- sampling at 12 bits resolution

- additive harmonic synthesis



edit SAMPLING
the DSM engine samples at 12 bits and 4 fixed frequencies (check table below), once sampled there are some standard sample edit functions such as : reverse, merge, chain samples (LINK) truncate, loop, crossfade, copy and zone assign (up to 30 samples can be mapped).

Frequency Transpose limit Sampling time (seconds)
16 kHz 24 semitones up 16
24 kHz 17 semitones up 11
32 kHz 12 semitones up 8
48 kHz 05 semitones up 5.5
sample mode

 

edit ADDITIVE is a non real-time process based on 128 sinewave harmonics with adjustable level. This process also includes 17 preset shapes: square, sawtooth (x3) , organ, metal, sax, synthesizer, bass, sinewave, EP (x2). TIP: Created waves can be saved as normal samples.

harmonic synth demo HEAR generated cycled wave




edit MEMORY the internal sample non-expandable memory is 1 megabyte + 32 slots for sound patch programs and 32 multi-sounds. Sounds and samples can be stored to primitive 1,44 Mb floppy drive but it is possible to install a more modern USB emulator disk (like HxC).

structure

 


edit
PERFORMANCE unit manages up to 4 parts some special features

- Midi channel assign
- semitones shift
- keyboard zone
- allocated voices
- poly or mono mode
- part volume
- part tuning
- up to 16 split points
- multimode layer: 2 x layer / split 2 / split 4 / single / multi
- trigger input: sets a threshold to playback a sample.

 

dsm1


 

editFILTER resonant lowpass analog filter based on 8 X chips NJM-2069 (same found on Korg Poly 800 but not paraphonic of course) at -12 or -24 d/B slopes. Proportional Keyboard tracking function is implement into the VCF section.

NJM2069 demo HEAR filter resonance

 

 

edit LFO 2 triangle-shaped delayed modulators MG"(Modulation Generator).
The modulators are retriggered at each note press, relative frequency is quantized into 32 values with variable depth amount. LFo Destinations are:

structure

- pitch (OSC1 / OSC2 / both)
- filter cutoff
- modulation for delay effect
demo HEAR LFO


 

edit ENVELOPE 2 EGs based on VCA each with 4 segments + 2 times:
- EG1 amplitude
- EG2 filter cutoff (bipolar)
DSS1 features also a bipolar AUTOBEND function for the pitch on a range of time + 2 slimmed-down EGs for the VCF/VCA touch sensibility.




edit DSM1 MAINTENANCE & MODIFICATION
Common issues are:

dss floppy drive replacement

- backlight LCD

- faulty Shugart fromat - Personally I always managed to clean the drive head with success, or it is possible to install a more modern USB emulator disk (like HxC).

- other common upgrades : for a short period, a third-part company by Tom Virostek released an upgrade kit with new board, faster CPU, more memory and SCSI option.

 

 

edit EDITORS there are some free and commercial computer-based editors:

- SpazTech for Korg DSM-1 (old MAC, FREE) PIC
- Digidesign Turbosynth (Atari ST) PIC
- Turtle Beach samplevision (for old PC ->no more available) PIC
- Midiquest (PC/MAC, commercial) PIC
- Clyphx (Ableton script)
- Edit DSS (Atari ST, no more available) PIC
- Softynth Digidesign (Atari ST, no more available) PIC
- VSTizer DSS-1 (plugin, commercial)

dss1 editor


 

edit RELATED FAMILY:

Korg DSM1

KORG DSS-1 more or less the keyboard version with some differences:

DSM1 VS DSS1:
- DSM1 has HD disk1,6 mb VS DD 880kb
- DSM1 has more RAM (4 times more )
- DSM1 has more 15 analog outs
- DSM1 has no OSC sync (ouch!)
- DSM1 has only 4 poles filter VS. 2/4 mode
- DSM1 ha no resonance Q (big miss!)
- DSM1 has no delay engine
- DSM1 has no "DRAW waveform" function
- DSM1 has more additive presets
- DSM1 manages 4 parts vs 1 DSS1s
- DSM1 features 1 VCF per oscillator / DSS1 1 VCF per VOICE (2 oscillators)
- DSM1 D/A resolution is fixed to 12 bits, DSS1 can be changed also to lo-fi 8/10/7/6 bits
- DSM1 has no noise generator


 

effet VST PLUGIN / SAMPLED VERSION there is no plugin VST / reliable DSM1 samples sounds available for the moment.

effet NONE n/a




demo
AUDIO DEMO (from DSS1, please send YOUR SAMPLES DEMOS)

demo Pad with CVF MG
demo Strings
demo raw pad
demo brass pad
demo Resonance1
demo Resonance2
demo Cylone brass
demo arpeggio resonances
demo (another) resonant pad
demo Brass with 2 delays
demo Fat LFO
demo EBM bass like
demo Warm Rhodes
demo Clavinet
demo TEST: LFO pitch all frequencies
demo TEST: generated cycled wave
demo TEST: square wave --> Unison --> detune
demo TEST: "organ" created by ADDITIVE
demo TEST: "Square" created by ADDITIVE
demo TEST: "Metal created by ADDITIVE
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video VIDEO SELECTION

demo1 video2  
Demo woth ROLAND ALPHA JUNO2  


Company: Korg
Model: DSM-1
Class: module sampler
Rackmount: 3 units
Display: 2 x 20 LCD
Dates: 1987
Resolution: 12 bits
S. rate: 16->48 kHz
Polyphony: 16 voices
Multitimbric: 4 part
Filter: lowpass analog
Envelope: 2 EGs
LFO: 2 modulators
Effect: digital delay
Memory: 1 mega
Storage: HD disk
CPU: Z80
Demo: 22

 

manual
MANUAL

 

service
SERVICE MANUAL

dsm1
edit original brochure

 

dsm1
edit original brochure

 

dsm1
edit origina advert

 


Korg DSM-1 FOR SALE

Korg DSM-1 FOR SALE
CHECK OUT EBAY OFFERS

 

dsm1 banner

 

 

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UNDERRATED MACHINE

comment

REVIEW"Quite disappointed by this module which lacks too many original features: the DSS1 is more a synthesizer while DSM1 is a more a plain sampler."

manual manual
-sounds many features from DSS1 are lost e.g resonance
-enhancement (disk / ram)
- bulky, rack is very deep,sync,delay
-multitimbral  



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