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Spectral Audio Syntrack

 

 

spectral audio syntack

 

Spectral audio Syntrack (1997)

 

A one unit rack form Switzerland featuring digital short waves and analog filter.


syntrack made in swiss

waves eprom

EXPANDER single unit rack with nice blue anodized color, very light and not very deep.
The main panel has six flimsy potentiometers that transmit Midi Control change and eight push buttons to edit on a numeric red display that obviously limits editing.

back panel has these connections: Audio mono out, Audio IN for external input filtering and Midi I/O.


The power supply is external and needs a 9v AC-AC.

VOICE subtractive synthesis with one digital oscillator based on a very short one-cycle waveforms including classical ones such as SQUARE / SAW and mostly computer generated harmonics or even precalculated FM: just pure electronics, no acoustic junk. The wavetable is definitively low-fidelity with some audible compression artefacts and not editable like Waldorf Microwave.

Below the featured PCM waves in ROM:

 0    Sawtooth  
 1    Square  
 2    Pulse 1  
 3    Pulse 2  
 4    2. Harmonic  
 5    3. Harmonic  
 6    4. Harmonic  
 7    Triangle  
 8    Sawtooth+Square  
 9    Sync Square  
 10    Sync Sawtooth  
 11    Synth High pass  
 12-17    Synth  
 18-21    Organ  
 22-28    Synth  
 29+30    Synth Bell  
 31-55    Synth  
 56-61    Organ  
 62+63    Synth  
 64-68    Synth Highpass  
 69-74    Synth  
 75+76    Organ  
 77-82    Synth  
 83+84    Organ  
 85-98    Synth  

 

waveforms spectral

spectral audio


>TECH< The internal ROM can be expanded with an optional chip giving an extra 100 PCMs, quite impossible to find it out.
>IHMO< strange enough for a monophonic machine, there is no Portamento or Glide functions.

LFO 1X low frequency oscillator sinusoidal accessible only by display.
The LFO modulates only the Oscillator pitch, but not the filter (another bad point) Internal frequency rate or sync to external Midi clock at various rate divider.

vcf filter

FILTER analog breed featuring 4- poles resonant VCF with external signal feed process (with note gate), pretty good with nice bass bottom up to self-oscillation.


>TECH< VCF RANGE: 20 to 20'000 Hz

FX No internal effects but an analog distortion-saturation for very aggressive basslines: pretty good results on some waveforms but it emphasizes click and glitches noises.

MIDI every parameters is Control Midi implemented and the knobs are recordable, quite good for some some sequence patterns. Bulk Sysex dump very simple and effective.

MEMORY 100 slots for sounds .
Non-expandable RAM no external media, DUMP only with MIDI SYSEX.

syntrack audio demo

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original scan

 

 

 

VCF FILTER inside the syntrack made in swiss

- midi
- analog filter and feed
-some waveforms

- limited
- display
-wavetable quality
-no advanced editing

PERSONAL OPINION:  

Esoteric and hard to find. Can be useful if you like Lo-fi harsh and distorted stuff. It's definitively NOT a PPG but it doesn't mean to be.

Second hand price: 150 euro

 
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swiss flag analog "between analog and digital" - spectral audio brochure



 

 

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