[sdiy] BTW, could someone be kind enough...

[John L Marshall]

Where do you want the basement to be? 20 Hz?

0 V = 20 Hz
1 V = 40 Hz
2 V = 80 Hz
3 V = 160 Hz
4 V = 320 Hz
5 V = 640 Hz
6 V = 1.280 kHz
7 V = 2.56 kHz
8 V = 5.12 kHz
9 V = 10.24 kHz
10 V = 20.48 kHz if you can hear it.

-1 V = 10 Hz
-2 V = 5 Hz

You could make 5 V = A440.

John

----- Original Message ----- 
From: jbv <jbv.silences at wanadoo.fr>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Saturday, January 12, 2002 3:40 PM
Subject: [sdiy] BTW, could someone be kind enough...


> BTW, could someone be kind enough to remind me the
> formula to calculate the output frequency of a VCO with
> expo converter at 1V/oct, when you know the input voltage
> and the basic freq when CV input = 0V ?
> 
> I had it somewhere, but can't retrieve it...
> And these days, my memory is getting as poor as my maths...
> 
> Thanks in advance.
> JB
> 
>