Tang H, Letowski T
Department of Communication Disorders, Pennsylvania State University, University Park.
Ear Hear. 1992 Oct;13(5):378-9. doi: 10.1097/00003446-199210000-00014.
Several recent studies have reported large intersubject variability of high-frequency thresholds measured with circumaural earphones. In the present study, high-frequency thresholds of 10 subjects were measured with circumaural (Sennheiser HD-250) and insert (Etymotic ER-1) earphones at 10, 12, 14, and 16 kHz. Overall results show significantly smaller variability of the threshold data obtained with insert earphones than with circumaural earphones. The above data indicate that insert earphones may be more suitable for high-frequency testing than circumaural earphones.
最近的几项研究报告称，使用耳周式耳机测量的高频阈值存在较大的个体间差异。在本研究中，使用耳周式（森海塞尔HD - 250）和插入式（音特美ER - 1）耳机，对10名受试者在10、12、14和16千赫兹频率下的高频阈值进行了测量。总体结果显示，与耳周式耳机相比，使用插入式耳机获得的阈值数据的变异性显著更小。上述数据表明，插入式耳机可能比耳周式耳机更适合高频测试。
