A deep, low rumble with much less high-frequency energy than white or pink noise.
Built from Brownian motion
Brown noise, also called red noise, can be produced by integrating white noise so that its energy falls as frequency rises.
Strong low frequencies
Its spectrum drops by about 6 dB per octave, producing a deeper and less hiss-heavy sound than pink or white noise.
A low, rolling character
Brown noise is often compared with distant surf, a large waterfall, low wind, or a continuous far-off rumble.
Begin at a low level
Low frequencies can feel powerful even when they do not sound sharp. Start quietly and use a comfortable device volume.
Use a comfortable device volume. Stop if listening feels uncomfortable.