Understanding
the Colors
of Noise
As with the colors of light, each color in the noise frequency spectrum has distinct properties and functions. In sleep applications, colored noise is often used to mask background noise, such as noisy neighbors or city sounds. It is also effective against more disruptive noises, like a snoring partner or neighbors that party like it's New Years Eve every weekend.
Pink Noise, in particular, is used to promote deep sleep. It is a steady sound that filters out distracting or obtrusive noises. Unlike White Noise, which includes all audible frequencies at equal energy levels, Pink Noise has more intense energy at lower frequencies, producing a soothing and more relaxing sound.