Unwanted sound is considered as noise pollution which can cause both behavioral and health problems in human beings. Noise pollution can cause physiological changes in the body like hypertension, high stress level, sleep disturbances etc. It can also cause behavioral changes like annoyance, aggression etc. Normal pleasing sound level is around 30 dB but the normal environmental noise is around 40-60 dB which can be considered as normal. But if the noise level increases above 80 dB, it can affect our psychomotor performance and creates high stress level, loss of attention, physiological changes etc.
Filed Under: Electronic Projects