[PD] using fiddle~ ?

Frank Barknecht fbar at footils.org
Sun Oct 7 17:53:42 CEST 2007


Hallo,
robbert van hulzen hat gesagt: // robbert van hulzen wrote:

> hmmm "proper frequencies", eh? after all this talk of undoing the midi
> revolution, would'nt it be about time to undo the equal tempered revolution?
> ;)
> but really, fb's answer made me wonder to what extent [mtof] rounds its
> incoming numbers. according to the helpfile, "you can specify microtonal
> pitches as in "69.5" (a quarter tone higher than 69)".

The formula, mtof uses for converting pitches to frequencies, is this:

 f = 440 * pow(2, (m-69)/12)

Also see:
http://www-crca.ucsd.edu/~msp/techniques/latest/book-html/node11.html
or attached patch.

Ciao
-- 
 Frank Barknecht                                     _ ______footils.org__
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