Mix brown noise with other ambient sounds and nature soundscapes to focus, sleep, or relax. Free high-quality brown noise generator.
Brown noise (also called Brownian or red noise) is random noise with more power in the lower frequencies. Compared to white noise’s bright hiss or pink noise’s balanced tone, brown noise sounds like a steady, rumbling waterfall or distant surf — deep and enveloping.
Many people, including those with ADHD, report that brown noise helps mask distractions and makes it easier to settle into deep work. Its low, even texture gives your brain a consistent backdrop without sharp sounds pulling your attention away.
The deep, gentle quality of brown noise can help mask sudden noises that interrupt sleep — traffic, a partner moving, a noisy building. Set the sleep timer and let it fade out once you’ve drifted off.
In Noctunea you don’t just press play — you build. Layer brown noise under soft rain, a fan, or distant thunder, set each level with its own slider, and save the blend as your personal focus or sleep mix.
Neither is universally better — it depends on you. Brown noise is deeper and softer, which many prefer for focus and sleep, while white noise is brighter. Try both in Noctunea and see which you like.
Join thousands of users who use Noctunea daily for focus, sleep, and relaxation.