The noise mean volume that listeners do not want to hear, because it can affect emotions. Feelings even exceeds the threshold that is dangerous, but it is noise affecting the audience. The use of feelings do measure more difficult.The music is very loud. In place to dance. Don't make those who go out to feel disturbed. But in the place wants peace, such as library voices normally with loudness, about 60 DBA is considered to be noise 1.Cause annoyance. Feel uneasy uneasy, what clear neurological
2. Please to relax, sleep and communicate
3.The distracted. Efficiency decreases, and if so much noise may cause a malfunction. Or slow until the accident
4 affect health, stress may cause physical ailments such as stomach, high blood pressure 5
.The guideline for listen too long may cause hearing loss. Which may be temporary or permanent.
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