Sink into a deep cloud and let the purple vibrations pull you into a rich soothing sleep. 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 purple noise sounds. Purple noise is a variant of white noise that has been filtered. Purple noise, also known as violet noise, is great for helping you to mask outside noises so that you can relax, sleep, and rest. Escape from the daily nuances of life with the purple sounds web player.