brownfm

Brown noise, made with math on your iPhone.

Download Brown FM on the App Store
Listening guide

Brown noise in a noisy room

A steady sound can make interruptions less prominent, but the deepest setting isn’t automatically the best match. Start with the distraction you hear, then adjust the sound’s balance.

Choose a starting point for the room

Traffic or a low mechanical hum
Start with Deep Brown at a modest volume. If the combined low rumble feels heavier, try moving Depth toward Lighter or reduce the volume. Adding more bass is not always an improvement.
Conversations and television
Try a little more Texture toward Detailed. Speech covers a broad range; a deep rumble can leave its upper detail noticeable. Compare with white noise if you prefer a broader sound.
Footsteps, doors, or sudden impacts
Expect some sounds to stand out. Background noise does not stop vibration through a building or remove a sharp impact. Don’t keep raising the volume to chase every event.

Adjust from where you actually sit or sleep

  1. Play your chosen sound quietly and listen from your normal position.
  2. Change Texture or Depth once, then compare. If you change volume, placement, and tone together, it is harder to tell what helped.
  3. Try moving the speaker so the sound reaches your listening position clearly without putting it right beside your ear.
  4. Save the setting only if the combined room sound feels less distracting. Keep important alerts audible.

Your room, speaker, and distance all affect the result. A phone speaker may not reproduce the deepest part of the signal. Stereo Space is most useful to compare on headphones.

Take the edge off a busy room.

Give distracting voices and everyday noise a steadier background.

Download Brown FM