Noise Ambient: Focus & Sleep

Noise Ambient turns your phone into a precision noise generator for focus, sleep and relaxation.

Every sound is synthesised in real time by a native C++ audio engine built on Google Oboe - no loops, no audible seams, no huge downloads. The noise runs endlessly and stays the same quality no matter how long you listen.

FOCUS, SLEEP, RELAX
Pick the noise colour that matches what you need: white noise to mask sudden office sounds, pink noise for reading and long work sessions, brown noise for deep, low rumble while falling asleep.

NOISE TYPES
- White, pink and brown noise are free, forever
- Blue, violet and green noise are part of Premium
- Continuous synthesis - no looping samples

3D SPATIAL AUDIO (PREMIUM)
Move the sound around your head instead of leaving it flat between your ears. Six spatial modes - static, orbit, wave, random, bubble and wall - keep the sound field alive and make long sessions far less fatiguing. Works with any headphones.

LIVE MIXER (PREMIUM)
Blend several noise types into one custom soundscape and set the level of each layer individually.

TIMERS
- Sleep timer that stops playback on its own
- Pomodoro timer for work and break intervals
- Wake-up alarm that fades your noise into the morning
- Session history so you can see what you actually used

HOME SCREEN WIDGET
Play, pause, change noise type, adjust volume and switch presets straight from the home screen.

VISUALISER
Watch the sound as it plays, or turn the animation off completely to save battery.

BUILT FOR LONG SESSIONS
- Plays reliably in the background with screen off
- Low-latency native audio engine, low CPU load
- Works fully offline - no internet connection needed while playing

PRESETS
Save your favourite combination of noise type, volume, spatial mode and timer. Free users get one preset slot, Premium users get unlimited presets.

PREMIUM
An optional subscription unlocks all six noise types, 3D spatial audio, the live mixer, unlimited presets and the widget. Monthly and yearly plans are available in the app; the current price is always shown by Google Play before you buy.

Questions or feedback: contact@sromline.com

Recent changes:
Version 2.11

- Wake-up alarm now fires reliably, including after a reboot
- Premium status is no longer lost when the app starts offline
- Home screen widget unlocks correctly for subscribers
- Timer history and Pomodoro intervals stabilised
- Smaller audio engine and battery fixes