What a gem!

Noizio is an elegant little app that’s perfect for feeding your headphones with various variations of white noise so you can block out unwanted noise. Great simple interface, easy to configure, and a nice selection of sounds. The only thing I might request is a way to get more sounds into it. Currently, you can mix any combination of 15 sound loops. Kudos to the developer for creating such a well-designed app.

FilmFan2006 about Noizio — Calm, Meditate, Sleep