[sdiy] A crazy idea..

John Loffink jloffink at austin.rr.com
Wed Oct 5 02:51:55 CEST 2005


Ahh, like one of these:

http://www.wavemakers-synth.com/269pg1.html

John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com


> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl [mailto:owner-synth-
> diy at dropmix.xs4all.nl] On Behalf Of Harry Bissell Jr
> Sent: Tuesday, October 04, 2005 5:36 PM
> To: Jeff Farr; synth-diy
> Subject: Re: [sdiy] A crazy idea..
> 
> You could record the CV signals by using a
> V/F (voltage to frequency) converter... essentially
> a VCO.  Record the frequencies.
> 
> To play back, you use a F/V converter. This could be
> a simple tachometer type circuit, or a ramp/hold type.
> 
> If you used the ramp/hold, it could respond in
> two cycles of the recovered frequency (well ONE cycle
> if you use a more sophisticated circuit. In fact it
> could even be by HALF-CYCLE if you are really really
> fussy about response time.
> 
> If you used maybe 1KHz to 10KHz to represent the
> 0-10V range... the longest response time would be a
> 1ms delay.  That's probably good enough for all
> 'non-audio' rate control voltages.
> 
> I think that Morton Subotnick used this method.
> 
> H^) harry
> 




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