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Monday, April 13, 2009

KORG Poly-61

via this auction

"FEATURES:
Oscillators:
The Poly-61 uses DCOs and has two per voice. DCO1 provides sawtooth, pulse, and PWM waveforms. DCO2 has only sawtooth and square.

Filter
The filter has the usual controls for cutoff, resonance, keyboard tracking and envelope amount. Some of these are rather limited by the poor parameter resolution. Keyboard tracking is simply "on" or "off" for example, and resonance and envelope level (here labelled "EG Intensity") have only 8 settings.

Output:
The final component in the audio path is a VCA. It can be driven by the envelope generator or a CV/Gate pulse.

Modulation:
Envelope generator
The envelope is an ADSR type. All parameters can be set to any of 16 levels.

LFO
The LFO (known as a 'modulation generator' on the Poly-61) is a simple triangle wave that can be routed to the DCOs or VCF. It has a variable delay before it is triggered.