Home > CCA2 > Chapter 11 > Lesson 11.2.1 > Problem 11-49
11-49.
Logarithms are used to measure the “loudness” of sound. Decibels (dB) are logarithmic units used to describe a ratio of two levels of intensity or pressure. The difference between two levels of sound pressure (
How many decibels correspond to doubling the pressure of a sound?
log What is the sound pressure of a noise described as
dB? log log
What does
decibels mean? The sound ratio is
. How many times more pressure is in a sound of
dB than of dB? times more pressure.