What is the meaning of Decibel?

A common measure of sound intensity ratio that is one tenth of a bel on the logarithmic intensity scale. It is defined as dB = ⅒log10(P1 / P2), where P1 and P2 are the relative powers of the sound.

decibel (unit of sound intensity ratio)

decibel

decibel

decibel

decibel (a common measure of sound intensity)

decibel

Alternative form of decibelio

Source: wiktionary.org