Shades of violet surround you as everything else disappears. The deep ocean of violet waves are waiting for you now. A cousin to the classic white noise, Purple and Violet have been known to help with sleep, rest, relaxation and focus. AmbientNoise.Online creates relaxing violet noise sounds to help mask the outside world. Violet noise, often referred to as purple sounds, is a variant of white noise that helps with sleep, rest, relaxation, and focus.