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White noise means that the frequency of a sound is uniform in the audible range, which makes her look closer to a straight line. It is mainly a soft sound in nature, such as the sound of rain, water flow, and ocean waves. Belongs to white noise.
White noise has two characteristics, one is to calm emotions, when you are irritable or insomnia, listening to these white noises can calm you down, soothe your emotions and make it easier for you to fall asleep, the other is the masking effect, white noise Can effectively neutralize other noises, thus creating a false quiet.

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