[DECtalk] tables for the conversion of notes to frequencies?
Lowell Prange
lowell at mrprange.com
Fri Jan 8 06:35:02 EST 2016
If you are going higher, multiply the values of the previous octave by 2
or lower divide by 2
Example A 440hz and octave higher is 880hz and an octave lower is 220hz
Sorry if the following gets wonky on the math but it may be of use if
you are programming
If you want to work chromatically, each note is multiplied by the 12th
root of 2 (1.059463094)
so Bb = 440 * 2^(1/12) or 440 * 1.059463094
B = valueofBb * 2^(1/12) or 440 * 1.059463094 *
1.059463094
C = valueofB * 2^(1/12) or 440 * 1.059463094 *
1.059463094
or 440 * ((2^(1/12))^NumberOfChromatictonesFromA)
or 440 * ( 1.059463094 ^NumberOfChromatictonesFromA)
On 01/08/2016 02:27 AM, Mohamed wrote:
> Hi guys, so, I plan on creating a production that features SoftVoice
> in it, and because SoftVoice has no standard note scale like dectalk
> does, I need a table that has the frequencies. I know that the DECtalk
> manual has a table of notes, but it only goes from c2 to c5, and I
> need notes beyond that range. Does anyone have a table that lists
> notes that go higher than c5?
> Thanks.
> _______________________________________________
> Dectalk mailing list
> Dectalk at bluegrasspals.com
> http://bluegrasspals.com/mailman/listinfo/dectalk
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