AUDIOMETRIC METHOD, AND APPARATUS FOR AUDIOMETRIC EVALUATION USED IN THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a small and inexpensive apparatus for audiometric evaluation, convenient to carry around, so as to be capable of adapting early to prevention of an accident or a deterioration in cognitive capacity by simply and surely grasping practical audibility of subjects such as aged persons, infants and patients without measuring average sound pressure of non-pure sounds, and detecting the degree of deterioration of audibility and that of the deterioration of the cognitive capacity.;SOLUTION: The apparatus for audiometric evaluation includes a means (A) for storing a series of pieces of non-pure sound information, a non-pure sound information output means (B), pure sound information output means (C), an output sound signal selection switch means (D), an amplified output means (E), a sound pressure adjusting means (F), and a sound reproduction means (G). In a method for audiometric evaluation, a plurality of pure sounds different in sound pressure, which are selected by the output sound signal selection switch means (D) and adjusted by the sound pressure adjusting means (F), are presented to the subject by using the apparatus for audiometric evaluation; the minimum sound pressure of the pure sound capable of being heard by the subject is checked; and the sound pressures of the series of pieces of non-pure sound information are adjusted to be equivalent to the checked sound pressure of the pure sound and presented to the subject.;COPYRIGHT: (C)2012,JPO&INPIT