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2. Understanding Decibel Levels for Hearing Health - AOL

   www.aol.com/lifestyle/understanding-decibel...

   Loud sound exposure can cause noise-induced hearing loss. In this guide, we'll give you specific examples to help you understand how loud is too loud. Understanding Decibel Levels for Hearing Health

3. Long-range acoustic device - Wikipedia

   en.wikipedia.org/wiki/Long-range_acoustic_device

   A long-range acoustic device ( LRAD ), acoustic hailing device (AHD) or sound cannon is a specialized loudspeaker that produces sound at high power for communicating at a distance. It has been used as a method of crowd control, which has caused permanent hearing damage, having an extremely high decibel capacity (up to 160 dB measured at one ...

4. Can you get a ticket for driving with really loud music ... - AOL

   www.aol.com/news/ticket-driving-really-loud...

   Sounds at 85 decibels can lead to hearing loss if you have sustained exposure to them, and sounds louder than 85 decibels can damage your hearing faster, the American Speech-Language-Hearing ...

5. Equal-loudness contour - Wikipedia

   en.wikipedia.org/wiki/Equal-loudness_contour

   Equal-loudness contour. An equal-loudness contour is a measure of sound pressure level, over the frequency spectrum, for which a listener perceives a constant loudness when presented with pure steady tones. [ 1] The unit of measurement for loudness levels is the phon and is arrived at by reference to equal-loudness contours.

6. Noise-Induced Hearing Loss: What It Is And How to Treat It - AOL

   www.aol.com/noise-induced-hearing-loss-treat...

   Noise-induced hearing loss affects adults and kids alike. This condition develops when damage occurs to the delicate hair cells in the inner ear due to exposure to loud sounds or noises. Get more ...

7. Noise-induced hearing loss - Wikipedia

   en.wikipedia.org/wiki/Noise-induced_hearing_loss

   Otorhinolaryngology, audiology. Noise-induced hearing loss ( NIHL) is a hearing impairment resulting from exposure to loud sound. People may have a loss of perception of a narrow range of frequencies or impaired perception of sound including sensitivity to sound or ringing in the ears. [ 1] When exposure to hazards such as noise occur at work ...