White Noise, Brown Noise, Pink Noise: Can Sound Masking Help You Sleep?
Published on: October 27, 2025
•schedule3 min read
Key Takeaways
When soundproofing isn't enough, sound masking can be a powerful tool for blocking out disruptive noises. We explain the difference between the 'colors' of noise.
Table of Contents
If you've ever been kept awake by a dripping faucet or a neighbor's distant TV, you know that it's often the sudden, intermittent sounds that are most disruptive. This is where sound masking comes in. By introducing a constant, soothing background sound, you can make these jarring noises less noticeable, helping you sleep better and focus more easily.
You’ve probably heard of white noise, but did you know there are other "colors" of noise? Each has a different character and is suited for different purposes.
Experience the Colors of Noise
Don't just read about it—hear the difference for yourself right now. Use our free browser-based generator to test which color masks your background noise best.
White Noise: The Classic Sound Mask
White noise is the most well-known type of sound mask. It contains an equal intensity of all frequencies across the spectrum of human hearing. Think of it as the audio equivalent of pure white light, which contains all colors.
Pink Noise: A More Natural Alternative
Pink noise is similar to white noise, but its intensity decreases as the frequency gets higher. This results in a sound that is more balanced and natural to the human ear, with more power in the lower frequencies.
- What it sounds like: A steady rainfall, rustling leaves, or wind.
- Best for: Sleep. Many people find pink noise more soothing and less harsh than white noise. It's excellent for drowning out a wide range of background sounds without being distracting itself.
Brown Noise (or Red Noise): Deep and Rumbling
Brown noise (named after Robert Brown, not the color) has even more power in the lower frequencies than pink noise. The higher frequencies are significantly rolled off, creating a deep, rumbling sound.
How to Use Sound Masking
You don't need expensive equipment to try sound masking. You can find hours-long recordings of white, pink, and brown noise on YouTube, Spotify, and dedicated apps. There are also many affordable white noise machines available online that offer various sound options.
The key is to set the volume just high enough to mask the intruding sound without the masking noise itself becoming a distraction. Experiment with different colors of noise to find the one that works best for your specific situation and personal preference.
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