>>12931Howdy Lurker!
yes! sound is measured in decibels, which is a logarithmic unit, obtained from the formula
level=10log(Ls/Lb)
where Ls is the loudness of the sound, and Lb is our hearing threshold.
Basically this means that sound level is not linear. Three decibels more is generally a double in perceived loudness.
Tow horns is not twice as loud as one horn. to get twice as loud, you'd need 10 horns.
This means that, as an exponential function, the curve of sound-pressue vs loudness would look like >pic related. An exponential curve.
>>12932This is also the system the richter scale uses to get it's number, but it's equation is #=log(I/b) there I is intensity, and b is baseline.
