受話器の漏洩特性

概要

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When the telephone receiver is used for communication, the leakage path between the earpiece and the pinna gives some disturbances to the action of telephone receiver, and consequently reduces its transmission quality. The acoustic impedance of this leakage path is very changeable in accordance with individual difference, the shape and material of earpiece, the method of coupling the earpiece with the pinna, and so on. In this paper, the measuring method of the acoustic impedance of leakage path consisting of acoustic mass L and acoustic resistance R, and acoustic compliance C in closed chamber is made clear. And these values are obtained on several typical earpieces of telephone receivers. Also analysis on acoustical characterestics is made to some entent by observing the avarage curve of actually measured leakage characteristics and supposing the electrical equivalent circuits including the ear cannal.
社団法人日本音響学会の論文
1960-06-30