[sdiy] Sample&Hold thoughts

[Plutonique9]

Hey there people,
I'm sure this has come up before in the history of sample and hold 
circuits, though I haven't read about it anywhere, the idea has been 
knockin' around my head for the last couple of days.

Ok, normally S&H's derive their sample voltage from a white noise 
source, or a LFO as with my EML. The max clock speed on most synth 
S&H's is probably around 20hz-30hz. In this fashion, they are 
normally used to add random deviations to VCF's and VCO's, I like 
them a lot, especially if they offer an external trig. input :)

What I'm wondering now is, is it possible to clock sample n' holds at 
extreme clock speeds, say around 11khz-22khz, or even higher.
I guess you know where I'm going with this.

I'd like to hear the effect of using an audio source, like a drum 
loop or a voice for example, as a "sample" source for the S&H. You 
know, in place of where white noise or an LFO is usually used.
Now if you clocked the S&H at a high enough rate, anywhere between 
4khz up to 48khz, or something, what you would hear at the output of 
the S&H would be the audio source, drum loop or whatever, the only 
difference would be that you could change the fidelity in real time 
over an extremely wide range by changing the clock rate, right?

I'm just drooling over the thought now of "Sample rate modulation", 
say if you modulated the clock speed from an external LFO or 
something.

Ok, so that's the plan, I'm still not "down enough" with electronics 
to know whether their are limitations which would make this 
impossible, let me know what ya think :)

Seeya 
-- Plutonique9, Plutonique9 at symbiocom.com

http://www.mp3.com/Plutonique9