Korg DW8000, Mono/Poly, MS-20...

Am Sonntag, den 12.02.2006, 14:55 +0000 schrieb Glen Stegner:

> Also the DW8000 does not have DCOs or VCOs, it's purely digital
> oscillators (DOs, if you will) or single-cycle SAMPLED waveforms.

Hm....

Quote:

"Oscillator operation

 

The PAI (phase angle increment) value and PAR (phase

angle register) value are added and the result is stored again

in the PAR. The PAR value is used as the wave table ad-

dress. The wave table stores different -harmonic- configura-

tion data for each octave on the keyboard.

IC47 (MB64H129) performs the processing needed to use

the PAR value as the wave table address.

Finally, data read from the wave table is converted to an

analog waveform by a D/A converter.

Time division multiplexing enables dual oscillator 6-voice

sound source capability.

Maximum simultaneous output of this system is 8 voices

x 2 oscillators.

Note: Given a sampling frequency of 50 kHz, PAI data

N = 2" x f/50 x 10\u2018 (where f is the pitch frequency)

is rounded to an integer value for N and converted

to a hexadecimal number."


 
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