White Noise, Pink Noise, and Brown Noise: Differences, Uses, and What Science Says Colored noise is becoming increasingly popular for improving sleep, focus, and relaxation. Among the most well-known types are white noise, pink noise, and brown noise. But what are their real differences? How and when should they be used? And most importantly, what … Continue reading White Noise, Pink Noise, and Brown Noise: Differences, Uses, and What Science Says