| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a speaker system such that a user of a hearing aid or sound collecting device can articulately hear a sound even in the presence of environmental noise without reference to the kind of the hearing aid or sound collecting device, and a parametric speaker used therefor. Ž<P>SOLUTION: The parametric speaker 1 which generates a radiation sound having superdirectivity from an input target sound and radiates the sound is used to radiate the radiation sound of the target sound to the hearing aid (sound collecting device) 8 as an object of transmission of the target sound by a tilting mechanism 1b and a rotating mechanism 1c which adjust the direction of a sound radiation opening for the radiation sound. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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