Octave and Fifth Quantizer

[WeAreAs1 at aol.com]

Jorgen wrote:

<< Wait a minute, did I get the fifths thing wrong? The interval between C 
and G is a fifth, right? G is 7 semitones up from C, right?  >>

Yes, it is.  But you need to raise the voltage by 7/12th's of a volt to get 
that pitch.  You raised it by 6/12th's.

The correct voltage increase would be 0.5833 volts, not 0.5000.  (thanks to 
our wondrous exponential converters, it's always .0833 volts per half-step)

<< Or am I thinking wrong here? I'm not a maths guy. >>

No, *I'm* not a maths guy!  I'm REALLY not a maths guy.  Believe me, you are 
Albert Einstein by comparison.

Anyway, it's good that you can adjust it to the pitch you want.  The flatted 
fifth may be a better idea, because it is exactly half-way between the 
octaves.  Then you can make your fine tune knob's range symetrical around 
zero.  With the perfect fifth, the plus side of the fine tune knob would need 
to go up five half-steps to reach the next octave, but the minus side would 
need to go down seven half-steps.   (or you could go with the perfect fifth, 
and have the fine tune pot go plus/minus seven steps)  Either way is good, I 
think.

Michael Bacich