ACOUSTIC CHARACTERISTIC MEASURING DEVICE, ACOUSTIC CHARACTERISTIC CORRECTION DEVICE, AND ACOUSTIC CHARACTERISTIC MEASURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an external auditory meatus characteristics correction device for canceling resonance according to the structure of the external auditory canal of each person.;SOLUTION: The external auditory meatus characteristics correction device 40 includes: a measurement signal generation section 74 for generating a reference signal for measurement; an electric/acoustic conversion section 44 which converts the reference signal for measurement to an acoustic signal, and outputs it to an external auditory meatus 62, and which converts a response signal to the reference signal for measurement from the external auditory meatus to an electric signal; an external auditory meatus characteristic acquiring section 82 for acquiring the resonance frequency characteristics of the external auditory canal from the electrical signal of the response signal; and a correction coefficient calculation section 84 for calculating the correction coefficient of a correction filter so that the gain of the acquired resonance frequency can be reduced.;COPYRIGHT: (C)2010,JPO&INPIT