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The Hearing Process

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On May 29, 2016, Posted by , In Ear Conditions - Hearing,Hearing Loss and Hearing Aids, With Comments Off on The Hearing Process

Understanding how we hear helps us understand how hearing aids work. Sound is made of vibrations in the air. When an object vibrates, it compresses the surrounding air and pushes a wave through the air until either loses coherence or is intercepted by our ears. These waves are gathered by our ears and funneled into the ear canal- to the eardrum. Like a drum, the sound waves beat a message on this circle of tight tissue. Attached to the eardrum are three tiny bones which then mechanically convey the vibrations to another snail shaped chamber called the cochlea (cock-lee-uh). In this chamber are thousands of tiny hairs bathed in a fluid. The vibrations travel through the fluid and impinge
upon the hairs, each of which stimulate a nerve which sends a signal to the brain. Short hairs correspond to higher frequencies and longer hairs to the lower frequencies. Most hearing losses can be traced to damage to these sensitive hairs. The information provided here is general in nature and should not substitute for the care and advice of a licensed health care provider.