Brown Noise vs. White Noise: Benefits for Sleep, Focus, and Relaxation
The noises around us can significantly impact our days and nights. Whether you’re looking to mask loud sounds or fall asleep faster, sound therapy can help create a calm, soothing environment. White noise and brown noise are popular sound options that can help you with relaxation, focus, and even to get better sleep. In this article, we’ll compare brown noise vs. white noise to help you decide which one is right for you.
Understanding Colored Noise
Imagine soundscapes bathed in color, each affecting you in a specific way. While it may sound like something out of a sci-fi show, it’s actually the fascinating world of colored noise. Similar to how light has different colors based on its wavelength, sound can be categorized by color based on its frequency. These “colors” of noise-with their unique tonal qualities-can influence relaxation, sleep, and concentration.
What is Brown Noise?
Deceptively named, brown noise has nothing to do with color. Instead, it takes its name from Brownian motion, a scientific term named after 19th-century Scottish botanist Robert Brown, after he discovered the way pollen grains suspended in water “dance” under a microscope. Brown noise, experts say, mimics that motion with sound signals that change at random, from one moment to the next. The result is a deeper, more intense bass sound with a natural variation compared to the likes of pink or white noise.
What is White Noise?
Of all the colors, white noise is probably the most recognized and popular. White noise covers the entire spectrum of sound that our ears can perceive. Meaning that unlike brown noise, white noise contains and projects equal amounts of all audible frequencies, from lowest to highest, evenly all at once. It can be intense and high-pitched, and lacks a natural variation in the overall tonal quality, allowing for a steady flow of background noise.
Benefits of Brown Noise
While scientific research on brown noise's benefits is still emerging, many have found it helpful based on their experiences and shared positive testimonials on social media. Furthermore, other research suggests that the rhythmic pattern of brown noise may assist in synchronizing brainwaves, promoting relaxation and tranquility. This synchronization phenomenon, called “entrainment,” is when the brain aligns its electrical activity with the frequency of the external stimulus (brown noise).
Improved Relaxation
Brown noise, with its grounding, natural earthy tones, can be an ideal backdrop for mindfulness and meditation practices. Think of it this way-it has a way of quieting your mind, helping you to be more present rather than in your own head.
Improved Sleep
The deep resonance and warmth can offer a level of comfort by calming your breathing and slowing down your heart rate, helping you fall asleep.
Improved Focus
A 2017 study published in Applied Acoustics found that workers' ability to concentrate and perform specific tasks improved when modified brown masking noise was delivered using earphones.
Benefits of White Noise
Because white noise is a blend of all audible frequencies projected simultaneously at equal intensity, it can be an effective tool for masking disruptive sounds. Its overall consistency and uniformity offer an audio privacy screen of sorts, allowing our brain to focus less on unpredictable changes in the environment for a quieter and more serene environment.
Reduce Crying in Infants
Besides minimizing potential disturbances, white noise resembles what a baby hears in the womb.
Counteract Symptoms of ADHD
In one study, participants listened to two different white noise levels, one at 45 dB and the other at 65 dB while conducting a test to examine cognitive performance, creativity and stress levels. The results? White noise at 45 dB improved cognitive performance with sustained attention, speed of performance, increased creativity levels, decreased stress levels and improved accuracy. White noise at 65 dB improved working memory.
Brown Noise vs. White Noise: Which is Right for You?
If you need background noise for concentration, either option can work. Consider the following factors when choosing between brown noise and white noise:
- For Sleep: Experiment with both to see which helps you relax and fall asleep faster.
- For Focus: Determine which sound is less distracting and more conducive to concentration.
- For Tinnitus Relief: Consult with a hearing care professional to determine the best sound therapy for your specific needs.
Is Brown Noise Harmful?
Brown and white noise is generally considered safe for most people when listened to at a reasonable volume. Like any sound, prolonged exposure to high volumes can potentially harm your hearing. If you have existing hearing issues, such as tinnitus or hearing loss, it's a good idea to consult a hearing care professional before using brown or white noise regularly.
Finding Your Ideal Sound
Forget the one-size-fits-all approach to sleep. The path to slumber is as unique as you are. Is white noise better than brown noise? Is brown noise better for you than white noise? There's no single "best" sound for sleep. It's all about finding what lulls you into relaxation. Maybe you crave the steady hum of white noise, like a hissing radiator or whirring fan. Or perhaps the natural rhythm of crashing waves or a waterfall (brown noise) soothes you more.
Ultimately, the choice between brown noise and white noise depends on personal preference and individual needs. Experiment with both to discover which sound therapy works best for you.