Voice analyzer and voice analysis system

Abstract

A voice analyzer includes a first voice acquisition unit provided in a place where a distance of a sound wave propagation path from a mouth of a user is a first distance, plural second voice acquisition units provided in places where distances of sound wave propagation paths from the mouth of the user are smaller than the first distance, and an identification unit that identifies whether the voices acquired by the first and second voice acquisition units are voices of the user or voices of others excluding the user on the basis of a result of comparison between first sound pressure of a voice signal of the voice acquired by the first voice acquisition unit and second sound pressure calculated from sound pressure of a voice signal of the voice acquired by each of the plural second voice acquisition units.

What is claimed is: 
     
         1 . A voice analyzer comprising:
 a first voice acquisition unit that is provided in a first place and that acquires a voice;   a second voice acquisition unit that is provided in a second place and that acquires a voice;   a third voice acquisition unit that is provided in a third place and that acquires a voice;   an identification unit that identifies whether the voices acquired by the first, the second and the third voice acquisition units are voices of a first person or voices of others on the basis of a result of comparison among each of voice signals of the first, the second and the third voice acquisition units.   
     
     
         2 . A voice analyzer according to  claim 1 ,
 wherein the result of comparison is compared among the first sound pressure of a voice signal of the voice acquired by the first voice acquisition unit, the second sound pressure of a voice signal of the voice acquired by the second voice acquisition unit and the third sound pressure of a voice signal of the voice acquired by the third voice acquisition unit.   
     
     
         3 . A voice analyzer according to  claim 1 ,
 wherein a distance from the second place to the mouth of the first person and a distance from the third place to the mouth of the first person are substantially same.   
     
     
         4 . A voice analyzer according to  claim 3 ,
 wherein a distance from the first place to the mouth of the first person is greater than both of the distance from the second place and the distance from the third place.