White Noise for Sleep, Focus & Tinnitus Masking

Mask snoring, traffic, building noise. The constancy is what makes it work.

Block colleague conversations without lyrics distracting your inner monologue.

Many tinnitus sufferers find that white noise reduces awareness of the ringing during the day.

Continuous broadband noise resembles the womb environment — research supports its use under medical supervision.

For adults: yes, at moderate volume (under 60 dB). For infants: limit to short periods and never play directly next to the crib — the AAP recommends keeping it across the room.

White = equal energy at all frequencies. Pink = energy decreases with frequency (warmer, like rain). Brown = energy decreases even faster (deep, rumbling). Brown and pink are gentler on the ear; white is the best pure masker.

Only at unsafe volumes (>85 dB for hours). At normal listening levels it's harmless. As a precaution, take a 10-minute break every couple of hours.

Stochastic resonance theory: a moderate amount of random noise actually improves signal detection in the ADHD brain. Several studies confirm white noise improves task performance in inattentive adults.

Yes — all sounds on ASMR Sanctuary are completely free with no account required. Every sound is synthesised live in your browser using the Web Audio API, so there are no audio file downloads, no buffering, and no data usage after the page loads.

Yes. ASMR Sanctuary is a Progressive Web App (PWA). After your first visit, all sounds continue to work without an internet connection. Install it to your home screen for native-app-like offline access on any device.

Yes — headphones are recommended, especially for binaural sounds and for maximising the immersive effect of ambient sounds. Over-ear headphones deliver the most spatial and enveloping listening experience. Any headphones or earphones will work.

Yes. ASMR Sanctuary's sound mixer lets you layer any combination of all 67 synthesised sounds simultaneously with individual volume control. Mix rain with tibetan bowls, ocean with white noise, or any personalised combination. Mixes can be saved and shared via URL.

Indefinitely. All sounds are synthesised in real-time with no fixed duration — they loop seamlessly for as long as you need. Use the sleep timer to automatically fade after a set period (15 to 90 minutes) if you're using the sound for sleep.

ASMR Sanctuary works as a Progressive Web App (PWA) on any device. On iOS, open in Safari and tap 'Add to Home Screen'. On Android, open in Chrome and tap 'Install App'. The PWA runs in full-screen standalone mode with offline support — identical to a native app.