Which part of the ear determines the pitch ofa sound?

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The part of the ear that determines the pitch of a sound is the cochlea. Specifically, the pitch of a sound is determined by the frequency of vibrations detected by hair cells along the basilar membrane of the cochlea. High-frequency sounds produce vibrations near the base of the cochlea, where the basilar...
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The part of the ear that determines the pitch of a sound is the cochlea. Specifically, the pitch of a sound is determined by the frequency of vibrations detected by hair cells along the basilar membrane of the cochlea. High-frequency sounds produce vibrations near the base of the cochlea, where the basilar membrane is narrow and stiff, while low-frequency sounds produce vibrations near the apex of the cochlea, where the basilar membrane is wider and more flexible. Thus, the cochlea acts as a frequency analyzer, with different regions of the basilar membrane responding preferentially to different frequencies of sound. read less
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