[Roy W. Rising]

"Mr.T" MrT@home wrote:
"Roy W. Rising" wrote in message
...
Why logs (decades)? Just try plotting 20- 20KHz linearly! Or, 1
microvolt to 100 volts! (That's the typical range of levels in sound.)

Which is also backwards thinking. We only chose break points of 20-20kHz,
100Volts etc. because we had ALREADY chosen to use a decimal number
system!

MrT.

Your other responses were interestingly confused. This one is somewhat
upside-down. Logarithmic representations include natural logs that do not
use the base 10. While they more closely resemble our natural perceptions,
their math is unfamiliar.

The break point of 20 Hz is conveniently close to 16 Hz, the lowest
fundamental in acoustical music. 20 KHz is in the neighborhood of the
highest frequency humans can conciously identify. These nearby decimal
locations remain convenient approximations.

Log 10 based scale compression gives us a convenient display, but many
ten-fingered humans haven't the foggiest understanding of logs, hence this
thread. Many of the same primates continue to insist on a system of
weights and measures that conspicuously avoids decimal simplicity.
Velocities measured in furlongs per fortnight or miles per hour and
pressure measured in pounds per square inch deny the *assumption* "we had
ALREADY chosen to use a decimal number system!" ;-)

--
~ Roy
"If you notice the sound, it's wrong!"