[sdiy] Prophet VS a phase accumulator design?

karl dalen dalenkarl at yahoo.se
Thu Feb 3 18:38:40 CET 2011


>Scott
> I think the Evolver is not a great implementation of this.
> The  sample rate is too low (48 kHz?) to get away with the low
> resolution  wavetables and no multisamples, especially with all the FM
> and stuff.  It works for bass sounds and noise, and I understand it
> wasn't really intended to be an all purpose high fidelity machine, but
> it's not an ideal example to follow.

That's what supriced me to, a 160Mhz DSP and semi crappy oscs!
 
> I will say though that the early Casio Consonant-Vowel
> stuff is nearly
> great. The waveforms are very low resolution (16 steps) and
> buzzy, but 
> very bright and clean. The HT series has a uniquely
> excellent triangle
> wave.

Didnt the casios use the Ralph osc design, 600khz sample rate
a 1 for up a zero for down? 1111100000=triangle?
 
> I saw the DSS1 service manual recently. It seems to use a
> single  multiplexed DAC, like the DW-8000. This would indicate a
> fixed sample  rate. 

Absolutely sure on that?
Schemo/Manual says variable.





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