Noise Generator
Select Noise Type
Mix Mode
White Noise
Equal energy across all frequencies, like radio static
Pink Noise
More low-frequency energy, like a waterfall or rain
Brown Noise
Deep rumble, like distant thunder
Volume
70%
Sleep Timer
Press play to see the waveform
โช White Noise
White noise has equal energy across all audible frequencies. It sounds like radio static or a fan hissing. White noise excels at masking sudden environmental sounds (traffic, chatter) and is widely used for focus, concentration, and helping babies sleep. Technically, its power spectral density is constant across the frequency spectrum.
๐ฉท Pink Noise
Pink noise (1/f noise) has energy that decreases as frequency increases, falling 3 dB per octave. It sounds more natural and warmer โ like a waterfall, steady rain, or wind through leaves. Research suggests pink noise can improve deep sleep quality and support memory consolidation.
๐ค Brown Noise
Brown noise (Brownian / red noise) concentrates energy in low frequencies, falling 6 dB per octave. It produces a deep rumble โ like distant thunder or the low roar of the ocean. Brown noise is particularly effective for anxiety relief and deep relaxation, making it ideal for meditation or blocking noise in loud environments. It is named after Brownian motion (random walk).