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本文通过对十人双耳分别在松弛密封(或自然密封)和紧固密封条件下的人耳频响测量以及等效电路的推导和分析,说明声漏中声质量分量是不可忽视的;在250～1000赫频段内,声阻抗主要由它决定。在250赫以下声漏中声阻分量才起主要作用。本文对本实验频响与国外公布的人耳频响进行了对比,表明不同人种之间的平均人耳频响差别不大。采用高声阻抗标准耳机测量人耳频响时,证明只有紧固密封才能测出人耳实际频响,计量院测听仿真耳与IEC 318仿真耳一样,皆能较好地模拟紧固密封人耳频响。
In this paper, the sound quality components of the sound leakage can not be neglected by measuring the frequency response of the human ear and the derivation and analysis of the equivalent circuit of the human ear under the conditions of relaxed sealing (or natural sealing) and tight sealing, respectively. 250 ~ 1000 Hertz band, the acoustic impedance is mainly determined by it. Acoustic impedance component below 250 Hz plays a major role. This paper compares the frequency response of this experiment with that of human ear released in foreign countries, showing that the average ear frequency response between different ethnic groups is not very different. Using high-impedance standard headphones to measure the human ear frequency response, it is proved that only the tight seal can measure the actual frequency response of the human ear. The auditory simulation ear of the dosing institute, like the IEC 318 artificial ear, can well simulate the tight seal man Ear frequency response.