Remember, there are a variety of mobile applications and hand-held noise meters available that monitor noise levels. measured in dBA or decibels 0 The softest sound a person can hear with normal hearing 10 normal breathing 20 whispering at 5 feet 30 soft whisper 50. ![]() Cinema movie-action scenes: 118 decibels.Diesel truck accelerating: 114 decibels.Normal operation of a handgun, rifle, shotgun, skeetshooting or. Keep in mind that even noise levels between 85 and 90 decibels can cause permanent damage with extended exposure.Įstimated noise levels of some common activities include: sound level meter in accordance with the provisions of N.J.A.C. Experts estimate that noise levels above 105 decibels can damage hearing, if endured for more than 15 minutes each week. A decibel is a unit of measurement of the loudness of the sound. The best way to avoid developing NIHL is to stay away from noises that exceed 80 – 85 decibels, as much as possible. Decibel level for normal hearing ranges from 0 to 20 decibel. They can easily detect a 5 dB change in sound level under most conditions. Humans can just barely detect a 3 dB sound level difference. ![]() Key risk factors include the volume of the noise and length of exposure to it. As a general rule of thumb, an increase of 10 dB means the sound is perceived to be twice as loud however this can vary based on the type of sound and the listening conditions. Noise-induced hearing loss, or NIHL, is the result of exposure to loud noises.
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