Have you ever found that you were able to sleep better with an air conditioner or fan running or perhaps with the sound of rain falling outside?
One of the things that makes noise annoying is that the mind notices changes in the sounds of the environment. No doubt this ability helped keep our ancestors alive, by warning them of the faint sound made by a fierce animal.
White noise changes the background sound. The overall level of sound in the environment is higher, which raises the volume boundary over which noises must pass in order to be noticed.
Many office environments install white noise systems to help minimize distractions for office workers, and also to maintain speech privacy. A specialized use for white noise is in treating tinnitus (耳鸣).
A.White noise has many benefits. |
B.Besides, the sound quality has no special characteristics. |
C.What types of sounds are exactly included in white noises? |
D.If so, then you're already familiar with the concept of white noise. |
E.To us, however, becoming sensitive to every tiny noise can be a problem. |
F.White noise can often bring immediate relief from the annoying sounds of tinnitus. |
G.Studies suggest that using sound masking in the workplace leads to higher productivity. |