[sdiy] music/voltage volt/hz series

[Antti Huovilainen]

On Thu, 1 Feb 2007, bill bigrig wrote:

> If your trying to get from one note to another
> exponentially, multiply the frequency of a note by
> 1.05946 toget the frequency of the next note. Just
> like compound interest, it starts ramping up over
> time/equation). Thus a given voltage for a note will
> have to increase 1.05946 volts to get the next one.

Or you could just use the simple formula of
freq = 440*2^((midi note - 69) / 12)

60 being middle C note and 69 the A above that.

Not so surprisingly, 2^(1/12) = 1.05946

Antti

"No boom today. Boom tomorrow. There's always a boom tomorrow"
   -- Lt. Cmdr. Ivanova