Most of us have heard of “white noise”. It is a steady static-like sound that helps to drown out disturbing noises and can help us sleep or focus on something. However, did you know there are other noises as well that can help us improve our sleep including “pink” and “brown” noises? Here is a look at how each sound works.
White noise contains all frequencies of sound that you hear in equal parts often called “broadband noise”. This noise can be intense and high pitched like a fan, air-conditioner, or vacuum. White noise can help improve sleep, reduce crying in babies, and improve work performance and lower ADHD symptoms.
Pink noise is a constant sound in the background and can help filter out distracting sounds such as people talking or cars driving by. Like white noise, it can help give you a better night sleep. Unlike white noise, it is a deeper sound with lower sound waves, which can make it gentler and more soothing. This sound would be similar to a steady rain, wind rustling through the trees, or waves on a beach. Pink noise reduces the difference between a background hum and loud jarring noises such as a door slamming. As a result, it may help you fall asleep faster and keep you in a deep sleep longer.
Brown noise, also called “red noise”, produces a rumbling like sound and has a deeper sound of the three. It is similar to a steady heavy rainfall. Some studies has shown that brown noise can help lower symptoms if you have ringing in your ears. It has also shown to improve thinking skills.
If you are looking at adding colour noise to your sleep routine, you can get a noise app for your smartphone or on YouTube. You can also find a recording of your colour noise of choice and download a looping track from organizations such as the American Tinnitus Association. You can also buy a sound machine or noise generator that specifically gives you choices between white, pick and brown noise. Best to try different sounds to see what works for you and your environment.