The white sounds heard in our lives include the sound of rain, waterfalls, the sound of waves, the sound of streams, and the sound of branches blowing in the wind. These sounds are familiar sounds that we usually hear, so although they sound like noise, they are heard without much sound or psychological awareness. Also, I feel stable because it is a natural sound that I have always heard. In addition, through the white tones of nature, we feel a sense of protection that we are surrounded by the surrounding environment as a member of the universe, allowing listeners to audibly alleviate the feeling of silence.
Required Android Versions : KitKat [4.4–4.4.4] - Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]