Thread: sound decade ?
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Scott Dorsey Scott Dorsey is offline
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Default sound decade ?

Henry Kolesnik wrote:
I understand the octave which relates to the doubling of pitch, cent
which is 1/1200 of an octave. Cents are used in tuning and the good
ears can tell a diference of about 3 cents. My imagination seems
limited in understanding what's so great about plotting on log-log
paper.


Usually it's because log-log paper is what there is, and it's what
people have always used for plotting responses. Look at a product
data sheet and that's how you'll see it plotted.

And why is the knowledge of sound decades so limited? From 30
to 15,000 Hz there's 2.7 decades, 8.97 octaves and too many cents. The
book points out that all visible light is one octave making the audible
spectrum much more complicated if you look at it from that standpoint.


Mostly it's because one of those things that engineers came up with
because it makes the arithmetic easier to do, and today with pocket
calculators people don't really care so much about making everything
fall into nice easy numbers any more.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."