440 * 2^((x-69)/12)
x is the midi note 69 is the midi root note and 440 is the frequency of this note.
ch
----- Original Message ----- From: "Mark Khemma" mkhemma@orion.it.luc.edu To: pd-list@iem.kug.ac.at Sent: Monday, September 23, 2002 6:24 PM Subject: [PD] midi to freq equation
Sorry guys/gals
I know that this equation has be spout out before, but. . could someone please give me the equation for miditofreq, please? I know it has 2^(1/12) somewhere, but.. . My main reason for wanting to know this is that i'd like to do something like a mtof but the 12 tone equal temperment could be changed to some specific value (eg 13 tone, 76 tone, you get the idea). it would be an interesting way to study different modes (they call it modes right?) anywayz, thanks, mark.k
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