12 Dec
2005
12 Dec
'05
1:59 p.m.
On Mon, 12 Dec 2005 11:40:53 -0500, tim hall
<tech(a)glastonburymusic.org.uk> wrote:
On Sunday 11 December 2005 21:37, Atte André Jensen
was like:
The fundamental multiplier is is the 12th root of 2.
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Suppose I have an A with a frequency of 440 hz.
Which formula should I
use for transposing x semitones up/down? So which frequency would the Bb
a half step higher for instance have? What about cents (1/100's of half
steps)?
It's something like:
Pitch (Hz) = log(27.5/log(2)) + chromatic_note/12
for 12Tet, but I would check this out as I'm slightly mathematically
dyslexic.