pink noise

Softer white hiss

Pink noise is a sound signal with equal energy per octave, meaning lower frequencies are more prominent than in white noise.

It resembles natural sounds like rainfall, wind, or ocean waves.

Pink noise is used in audio engineering for testing speakers and acoustics, and has become popular as a sleep aid: I fall asleep faster with pink noise playing.

acoustic

frequency

Rate of recurrence

octave · waveform · amplitude · bandpass · equalization · filter · spectrogram · signal processing · audiometry · psychoacoustics

relaxation

meditation

Focused attention practice

de-stress · tranquility · serenity · spa · ambient · gentle · soft · steady · continuous · unobtrusive

sleep

insomnia

Persistent inability to rest

nighttime · drowsiness · soporific · doze · napping · siesta · snooze · deep sleep · sleep quality · sleep machine

nature

rainfall

Water falling from clouds

wind · thunder · river · steady rain · surf · natural sounds

masking

ambient sound

Environmental background audio

soundproofing · concentration · focus

Categories
Opposites
spectral frequency distribution

pink noisewhite noise

Constant random sound

hiss · silence

signal type

pink noisepure tone

Single-frequency sound wave

sine wave · silence · square wave

Family

noise, pink, noisy, pinkie, pinky, pinkish, noises, noisemaker, pinked

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Rated G