![]() There is more research to support the use of white noise, as pink noise has only been studied recently. When we measure brainwave activity using EEG, lower frequency brain waves associated with meditation and sleep have more power than higher frequency brain waves seen in alertness. This downward slope mirrors what happens in the brain and many systems in nature. In pink noise, power decreases at higher frequencies, so its graph has a downward slope (known as an inverse relationship, or 1 / frequency). In white noise, power is more or less constant for each frequency, so its graph has a flat line. Higher power sound waves are louder, and weaker power waves are quieter. Faster sound frequencies have a higher pitch, and slower frequencies have a lower pitch. ![]() Some forms of therapeutic brain stimulation even provide low levels of electric current through waves.Įvery wave has two important characteristics:įrequency is how fast a wave is. Waves exist in many different forms in nature, including the sounds that we hear and the brain waves that are needed for our neurons to communicate. Understanding Waves: The Language of Music and the Brainīefore diving into the details, let’s review some of the basic principles for sound and other waves. ![]() What’s the difference between white noise and pink noise? In this article, we’ll review questions about pink noise including: In fact, it may have benefits not only as sound therapy, but also as gentle brain stimulation. Researchers are studying pink noise for its potential to help with sleep, memory, and more. While many people are familiar with white noise, there is a new color of noise gaining attention: pink noise. Maybe you even bought a white noise machine to drown out the noise from your neighbors or the street. If you’ve ever had trouble falling asleep at night, you may have put on sounds of the rain or ocean waves to help yourself relax.
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