I just got an application, called “Noise” (Mac-only, but I’m sure there are similar for Win), and it simply produces White or Pink noise.
Have you ever tried listening to this for a few hours? It gets really, really soothing after a while. It’s nearly put me to sleep.
You’ve got to try this!
Here’s a Windows app: http://www.nch.com.au/tonegen/index.html
And the prettier Mac one: http://blackholemedia.com/noise/
