The decibel (dB) rating is a compressed measurement scale for sound intensity—i.e., the amount of sound energy (watts) passing through a square-meter area (m2) per second.

How much more sound energy is produced during normal conversation than while whispering?


Each additional 10-dB increase requires 10 times more energy than before. At an increase of four 10-dB intervals, the sound energy increases 10,000-fold (10 × 10 × 10 × 10).

Visit our website for other GED topics now!