10小时超柔和布朗噪音（棕色噪音）。10-Hour Smoothed Brown Noise.

本视频是10小时消除高音部分后的超柔和布朗噪音(棕色噪音)，适用于学习、睡眠、屏蔽环境噪音。
1. Noise Music
Noise music is a genre of music that is characterised by the expressive use of noise within a musical context. This type of music tends to challenge the distinction that is made in conventional musical practices between musical and non-musical sound.

2. White Noise
White noise is a noise that contains all frequencies across the spectrum of audible sound in equal measure. Because white noise spans multiple bands of sound, it is sometimes referred to as broadband noise.

3. White Noise and ADHD
The researchers concluded that the white noise benefited the children who had ADHD and helped them to improve their performance on the memory and verbal tasks.

4. Pink Noise
Pink noise is a
constant sound that filters out the high frequencies. Pink noise contains more power in the lower frequencies. Nature is full of pink noise, including: rustling leaves, steady rain, wind, heartbeats.

5. Brown Noise
Brown noise lowers the higher frequencies even more. It's a bit “rougher” than pink noise and resembles the roar of a river current or strong wind. It is called red noise since it is strong in longer wavelengths. It is also called Brownian noise, since its distribution looks like the signal noise produced by Brownian motion.

6. Brown Noise and Health
Brown noise helps block out distractions with low, soothing sounds. This noise may help relax you, soothe tinnitus, and boost attention and focus.

7. Use with Cautions
White noises can increase the risk of noise-related hearing loss. When they're played at a high volume for babies, for a long period of time, the babies are exposed to noise which their developing ears are not designed for.