Audio Class: The Basics: The Nature of
Sound
Loudness
- Loudness is measured in decibels (db)
- dB can be absolute or relative
- Decibels are logarithmic (like Richter
Scale)
- Loudness follows inverse-square law
- Falls off with square of
distance, like light
- Something half as far is 4x as
loud
Back to The Nature of Sound
Audio for Video Class © 1993
Richard Crowley