[sdiy] lookup table as expo converter

[Ingo Debus]

Am Dienstag, 25.05.04 um 17:16 Uhr schrieb Paul Maddox:

>
>> Wouldn't you be better off with just a MIDI input?
>
> not if you wanted to make it part of a modular synth.
>

Then I'll ask the other way around: does an inherently quantizing CV 
input to an oscillator make sense? Either you have a "continuous" CV 
source, like a LFO, ribbon controller, theremin controller, whatever, 
then you don't want a quantizing input (at least not one where 
quantisation cannot be turned off). Or you have a "discrete pitch 
control" source, like a keyboard or a digital sequencer. But then the 
control data are generated in the
digital domain anyway in most cases. Why convert them to a CV when the 
oscillator or digital expo converter needs digital data anyway?

I was thinking about the possibility to use the newer Atmel controllers 
with their large programmable timer arrays as quad (or even more) DCOs. 
But it would be quite an effort to have CV inputs, while MIDI input 
would be easy.

Ingo