VCO tuning

[Tim Ressel]

Hal Chamberlin's book has you tune the VCO for 16.3525 Hz for a 0V input. I
don't think it really matters, as it is dependent on the VCO design. What I did
was settle on having an even voltage like 4 volts equal middle C. You can pick
whatever you like of course. The important part is having your slope set so a 1V
delta equals a 1 octave delta over the whole operating range.

Tim Ressel -- Hardware DQ
Hewlett-Packard
Verifone Division
916-630-2541
tim_r1 at verifone.com



> ----------
> From: 	jbv[SMTP:jbv.silences at wanadoo.fr]
> Sent: 	Monday, July 19, 1999 4:29 PM
> To: 	synth-diy at mailhost.bpa.nl
> Subject: 	VCO tuning
> 
> Is there any "rule" for tuning a VCO with a 1V/oct input ?
> 
> In several designs, I noticed that the VCO was supposed to produce a 15
> Hz freq
> when the CV input was 0 V... Is that a rule ?
> Or is there a standard tuning for a CV input of, say, +1V ?
> 
> jbv
>