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The International Standard Reference Zero
COMMITTEE ON IDENTIFICA
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acoustic acuity air conduction Amer American Standard American Standards Association audio audiogram audiologist Audiology audiometer Auditory Test average bands of noise Bekesy better ear bone conduction bone-conduction thresholds calibration Carhart clinical clinician cochlear conduction thresholds critical band decibels difference discrimination ear canal earphone experimental Figure frontal bone hearing level hearing loss Hirsh impairment Jerger left ear listeners lists masked thresholds masking noise ment method microbar middle ear monaural narrow band noise noise level non-test ear normal hearing occlusion effect Otolaryng Otolaryngology otosclerosis output patient percent procedure pure tone pure-tone quencies range recorded reinforcement response right ear SAL test scores screening sensorineural sound pressure level speech audiometers Speech Hearing Res spondaic spondee threshold standard deviations stapes fixation stimulus subjects Table test ear test frequency Test W-1 threshold measurements threshold shift thresholds obtained tion unoccluded variability white noise zero