PROBLEM TO BE SOLVED: To solve the problem that a user is inaudible since a conventional sound collector has a structure of absorbing a sound higher than needed while resonating a sound entering from an opening in the inside to be vastly expanded and extracting a sound having a low resonant frequency.SOLUTION: The sound collector comprises: a sound collecting chamber having first and second openings, formed by a housing having a hollow inside and for collecting a sounds from the periphery through the first opening； a partition for partitioning the inside of the housing so as to close the second opening； and a resonance chamber having a locking part formed by the second opening. The partition has a plurality of drilled communication holes, and in the resonance chamber, a resonant frequency component decided by the space volume of the resonance chamber and the space volume of the communicated holes is extracted from a sound collected in the sound collecting chamber.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】 従来の集音器は、開口部から入った音声が内部で共鳴して大きく拡大される一方で必要以上の高い音を吸収し、低い共鳴周波数の音声を抽出する構成であるために、使用者が聴き難い。【解決手段】 第１及び第２開口部を有し、内部が中空なハウジングによって形成されて、前記第１開口部を介して周囲からの音声を集める集音室と、前記ハウジング内部を、前記第２開口部を塞ぐように仕切る隔壁と、前記第２開口部によって係止部が形成されてなる共鳴室と、を備えてなり、前記隔壁には、複数個の連通孔が穿設されて設けられ、前記共鳴室において、前記共鳴室の空間容積と、前記連結孔の空間容積によって決まる共鳴周波数成分を前記集音室に集音される音声から抽出するものである。【選択図】図２
