Sound Borb is a tool that works to generate continuous sound settings or environments (they continuously repeat until you stop them).
As default the program only has two settings, but you can download many more from the Sound Borb web, and even include your own. The two settings included are ocean (wave sounds etc) and ghostly (sounds of terror).
For each setting you can determine sound volume, instensity and other parameters. The whole process is so simple that it is reduced to choosing the setting you want, and clicking on the right button.