VCO

[Tony Clark]

> My current project is to replace the PLL/Counter circuit with a high speed
> DAC run off a sawtooth to generate the address bits. This is bound to be
> imperfect but then again it's music not space shots. This has the advantage
> of allowing different sweep types depending on the input waveform. This
> also makes the wavetable board truely an add-on waveshaper.

   Do you mean running a sawtooth waveform through an ADC to generate 
address bits?  I thought about trying this (just a passing thought in my 
head really)  but I've wondered how good this would really work as 
imperfections in the driving waveform (be it a saw, tri, etc) would make 
for some interesting glitches in the resulting output.
   But you're right, it'd make some interesting wave table sweep 
possibilities.  Using a triangle wave would be fun as it'd ping-pong 
through the wave table.  :)

   Tony

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I can't drive (my Moog) 55!
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Tony Clark -- clark at andrews.edu 
http://aupe.phys.andrews.edu/~clark
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