CS&D 110 Lecture Notes - Lecture 24: Hair Cell, Semicircular Canals, Vestibulocochlear Nerve
22 Apr 2017
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Document Summary
What is audiology: the discipline involved in. Audiologist: audiologists work in, private practice settings, hospitals (27%, surgical teams, residential health care facilities, schools (11%, classroom acoustics, central auditory processing disorders, universities (9%, hearing aid companies. Industry: e. g. , hearing conservation programs (such as coal mines, protect ears in noisy environments. Increase frequency -> increase pitch: amplitude/intensity, the extent of the molecules displaced during vibration, measured in decibels (db) Intensity of: normal conversational speech: 50 to 70 db sbl (sound pressure level, live rock concert: 95 to 100 db spl, loudness, perceptual correlate of amplitude, when amplitude increases, we perceive changes in loudness. Auditory anatomy: ear, three main divisions of the ear, outer ear, pinna, funnels sound to the ear canal, helps localize sound, about 1-inch long, s shaped, external auditory meatus. Incus (anvil: connect the eardrum to inner ear, amplify vibration of the eardrum.
