pink noise

[ pingk noiz ]

noun

, Physics.

1. a noise signal related to white noise but lacking uniformity, having less power at higher frequencies and more power at lower frequencies; a gentle, steady background sound, like lapping waves or windblown leaves, that filters out distracting or sleep-disturbing noises: higher in pitch than brown noise.

pink noise

noun

1. noise containing a mixture of frequencies, but excluding higher frequencies

Word History and Origins

Origin of pink noise¹

First recorded in 1960–65