What is Brown Noise?
Brown Noise is broadband noise with more energy in the lower frequencies, so it sounds deeper and less hissy than White Noise.
RainSleep — AI Sleep Sounds
Choose a deep or gentle Brown Noise profile, set a comfortable volume, and create a steady low-frequency background for bedtime, focused work, or a noisier room.
Brown noise is broadband sound shaped toward lower frequencies, giving it a deep, steady rumble with much less high-frequency hiss than white noise.
That heavier balance can make traffic, ventilation, or other low background sounds feel less abrupt for some listeners. Keep it at the lowest comfortable volume that suits the room.
White noise is brighter, Brown Noise is deeper, and Green Noise is shaped more toward the middle frequencies. None is universally best for sleep or focus.
Try each at a similar low volume and keep the sound that stays in the background without feeling sharp, muddy, or distracting.
Brown Noise is broadband noise with more energy in the lower frequencies, so it sounds deeper and less hissy than White Noise.
White Noise sounds brighter, Brown Noise emphasizes the low end, and this site's Green Noise profiles emphasize a broader middle range.
Start with Classic Brown. Choose Deep Brown for more low-frequency weight, or Soft Brown and Gentle Brown when you want less rumble.
No. The browser generates and loops a conditioned noise buffer after you press play. It continues until you stop it, leave the page, or the timer ends.