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
I read:
someone please give me the equation for miditofreq, please?
from x_acoustics.c:
float mtof(float f) { if (f <= -1500) return(0); else if (f > 1499) return(mtof(1499)); else return (8.17579891564 * exp(.0577622650 * f)); }
regards,
x
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
PD-list mailing list PD-list@iem.kug.ac.at http://iem.kug.ac.at/cgi-bin/mailman/listinfo/pd-list
check e.g. http://barely.a.live.fm/pd/stff/cxc.xtra/scaler-help.pd http://barely.a.live.fm/pd/stff/cxc.xtra/scaler.pd
its an mtof wrapper that eats the amount of scale slices per ocatve as a parameter.
[Mark Khemma]->[[PD] midi to freq equation]->[02-09-23 11:24]
|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 | | |_______________________________________________ |PD-list mailing list |PD-list@iem.kug.ac.at |http://iem.kug.ac.at/cgi-bin/mailman/listinfo/pd-list |
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Mark Khemma