3 STUDIES COMPARING PERFORMANCE OF THE ER-3A TUBEPHONE WITH THE TDH-50P EARPHONE
3 STUDIES COMPARING PERFORMANCE OF THE ER-3A TUBEPHONE WITH THE TDH-50P EARPHONE
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DOI：
10.1097/00003446-198810000-00007
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发表时间：
1988-10-01
期刊：
影响因子：
3.7
通讯作者：
ROESER, RJ
中科院分区：
文献类型：
--
作者：
CLARK, JL;ROESER, RJ
三个研究比较了ER-3A管式耳机和TDH-50P-MX41/AR超耳耳机的性能。研究的三个因素是：7至10岁儿童与成人的阈值差异，真实耳衰减的差异，以及存在高背景噪声水平时的阈值差异。研究了ER-3A管听筒插入深度对其的影响。研究结果显示，儿童和成人之间的阈值没有显著差异，ER-3A管式听筒的实耳衰减明显更好，在高背景噪声水平下ER-3A的阈值也明显更好。最关键的是，ER-3A管听筒的衰减特性发生了显著变化，这取决于耳塞的插入深度。
Three studies compared the performance of the ER-3A Tubephone insert earphone and the TDH-50P-MX41/AR supra-aural earphone. The three factors addressed were: threshold differences in children 7 to 10 yr old compared to adults, differences in real ear attenuation, and threshold differences in the presence of high background noise levels. The influence of insertion depth of the ER-3A Tubephone was also investigated. Findings showed no significant threshold differences between children and adults, significantly better real ear attenuation for the ER-3A Tubephone, and significantly better thresholds for the ER-3A in the presence of high background noise levels. Most critically, there was a significant change in attenuation characteristics of the ER-3A Tubephone, which was dependent on the insertion depth of the eartip.