On 4/2/2014 8:38 AM, Phil Allison wrote:
"Bill Gill"

It takes ten times the power to seem twice as loud.

Ten times the power is 10 dB, that is 10 times as loud.

** ********.

Most would say it was 2 or maybe 3 times as loud.


Twice as loud would be 3 dB.


** ******** again.

+3dB is only slightly louder.

+1dB is almost unnoticeable.


.... Phil


In one respect you are right +1 dB is just detectable. That is
how it was originally defined. +3dB is twice the power. To my
mind that is twice as loud. +10 dB is 10 times the power. Again
that would be 10 times as loud. Check the math. The calculation
is 10 * log(10) P2/P1.

Bill