Purple Noise

The mixture of sounds as you listen through the headphones creates its own synchronized melody. Your eyes are closed, allowing you to focus on listening. The rhythm is steady, but no one sound stands apart, instead they blend together to lull your senses into a deeply relaxed state. In audio engineering, electronics, physics, and many other fields, the color of a noise signal (a signal produced by a stochastic process) is generally understood to be some broad characteristic of its power spectrum. Different "colors" of noise have significantly different properties: for example, as audio signals they will sound differently to human ears, and as images they will have a visibly different texture. Therefore, each application typically requires noise of a specific "color".