BASIC ACOUSTIC CONSIDERATIONS OF EAR CANAL PROBE MEASUREMENTS
BASIC ACOUSTIC CONSIDERATIONS OF EAR CANAL PROBE MEASUREMENTS
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DOI：
10.1097/00003446-198710001-00002
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发表时间：
1987-10-01
期刊：
影响因子：
3.7
通讯作者：
KINCAID, GE
中科院分区：
文献类型：
--
作者：
DIRKS, DD;KINCAID, GE
本出版物包含了几个声学研究的回顾，其中探针位置对实耳增益的影响是通过基于平均人耳和耳朵模拟器研究的声学特性的理论模型来研究的。这些研究结果被用来证明驻波和耳膜阻抗对耳道内探头测量的影响。并利用KEMAR人体模型对声场进行了调查。使用商用探头传声器系统测量KEMAR耳道内不同位置的声压级和实耳增益。研究结果强调了耳道探头位置对耳道绝对或相对测量的重要影响，并指出了建立基于相关声学原理的耳道探头测量临床程序的必要性。
This publication contains a review of several acoustic investigations in which the effects of probe location on real-ear gain were examined through theoretical models based on acoustic properties of the average human ear and ear simulator studies. The results of these investigations are used to demonstrate the effect of standing waves and eardrum impedance on probe measurements made in the ear canal. Investigations were also conducted in the sound field with a KEMAR manikin. A commercial probe microphone system was used to measure the SPL and real-ear gain at various locations within the KEMAR ear canal. The results emphasize the critical effect of probe location on absolute or relative ear canal measurements and indicate the necessity to establish clinical procedures for probe measurements based on relevant acoustic principles.