### Home > INT3 > Chapter 10 > Lesson 10.1.5 > Problem 10-79

10-79.

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 ( and

*) is defined as*

How many decibels correspond to doubling the pressure of a sound?

What is the sound pressure of a noise described as

dB? 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.