Structured randomness for focus, sleep, or just being.
White
Equal energy at all frequencies
Pink
1/f spectrum. Natural. Rain-like.
Brown
Deep rumble. Ocean. Wind.
Binaural
Two tones. Use headphones.
Click a noise type to start. White noise has equal power across all frequencies.
Pink noise rolls off at 3dB per octave. Brown noise rolls off at 6dB per octave.
Binaural beats require headphones: slightly different frequencies in each ear create
a perceived pulsing at the difference frequency.