App Pick: Noizio
Adam Engst's pick of the week on MacBreak Weekly 496 is Noizio. This is a free app that generates any kind of background noise you want, and is very customizable. Just tap or click on the icons that represent different ambient sounds and then drag the slider to increase or decrease that sound's volume.
You can make it sound like you're outdoors on a sunny day, in a coffee house, inside a train, sailing on a yacht, and more. You can also combine as many sounds as you want. Noizio is available on iOS and Mac.