Install

sudo add-apt-repository ppa:costales/anoise
sudo apt-get update
sudo apt-get install anoise

Finish: Create the sound indicator entry launching ANoise from your launcher

No players in the sound indicator? Try this too. GNOME Shell users try this instead

Run

Click: Sound Indicator + Play

Preferences

Click: Sound Indicator + Ambient Noise entry

Community Noises

Dumptruck Idling, Fishing Boat, Diesel Motor, Forest Rain, Fountain, House Fan, Large Boat & Old Air Conditioner by Gordon VS

Install

Brow OSSL, Brow, Pink & White Noises by Stephen Andrews & Public Domain

Install

River by Lorenzo Carbonel

Install

Coon creek, Frogs.ogg, Lake Superior, Stoney Creek, Waterfall from old dam, Dinosaur drain, Lake Huron, Rideau river, Thunderstorm & Wind at Pinery by Mark Day

Install

Birds (Bambusicola, Carduelis, Ficedula, Prunella, Turdus) by Paco Molinero

Install

And more!

Dynamic
Copy your OGG|MP3|WAV noises into ~/ANoise or ~/.ANoise
Offline
You don't need Internet
Remember
ANoise will remember your last noise
Sleep Timer & Autostart
Features in the Preferences window
Lightweigh
RAM usage = ~132KiB