[ELI5] Why does a large amount of quiet noises combine to make a loud noise.

Question

[ELI5] Why does a large amount of quiet noises combine to make a loud noise.

In: 2

Answer 1

Sound moves in waves that have peaks and troughs. In a space with multiple sources of sounds, these peaks and troughs can align, creating constructive interference. This makes the sound louder. Conversely, if the troughs align peaks and vice verse, you get destructive interference, where the sound can be diminished in volume.