Internal ear characteristic evaluation device, inner ear characteristic evaluation method

摘要

PROBLEM TO BE SOLVED: To provide an inner ear characteristic evaluation device capable of evaluating an inner ear characteristic though the device is non-invasive and independent of a target person's answer.SOLUTION: An inner ear characteristic evaluation device includes: a stimulation tone presentation unit 11 for presenting a stimulation tone, which is an amplitude-modulated tone, to an external auditory canal of a person to be evaluated; an otoacoustic emission calculation unit 22 for calculating otoacoustic emissions caused by the presentation of the stimulation tone; and a phase modulation amount calculation unit 23 that calculates phase modulation amounts of the otoacoustic emissions in response to the stimulation tone and outputs at least any of the maximum value of the phase modulation amounts and the stimulation tone's sound pressure at the maximum value of the phase modulation amounts.SELECTED DRAWING: Figure 4