Ear and Hearing![]() | Index Hearing concepts | ||
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The Outer EarSound energy spreads out from its sources. For a point source of sound, it spreads out according to the inverse square law. For a given sound intensity, a larger ear captures more of the wave and hence more sound energy. The outer ear structures act as part of the ear's preamplifier to enhance the sensitivity of hearing. ![]() The auditory canal acts as a closed tube resonator, enhancing sounds in the range 2-5 kiloHertz. | Index Hearing concepts | ||
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The Tympanic Membrane
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