A method for measuring a frequency selectivity and a method and apparatus for estimating a hearing-impaired person filter shape by a frequency increase - measuring method

摘要

A method for measuring a frequency selectivity, comprising the steps of:The addition of noise of a predetermined band width of the catch 43 to a detection of sound, whose frequency and sound pressure level to a predetermined value are set, in order to generate a sound no;Under no sound or tone of the transmitted to a subject;Judging whether or not the subject the detection of sound from the can perform no sound or not, in that the band width of the catch 43 is expanded; andObtaining the ties - belt lock width for the subject.