Plyler P N, Burchfield S B, Thelin J W
Department of Communication Services and Disorders, Louisiana State University, Baton Rouge 70803-2606, USA.
J Am Acad Audiol. 1998 Dec;9(6):434-43.
The purpose of this study was to determine whether telephone communication was improved with electromagnetic coupling for in-the-ear hearing aid users with mild to moderate hearing losses. Each user adjusted his hearing aid gain to the level he determined to be best for telephone communication with each coupling method. Under these conditions, average word recognition scores in quiet and average high-frequency output levels measured at the tympanic membrane were not different for each coupling method. The ability to tolerate background noise was also studied. Background noise tolerance was not different for the two coupling methods. However, significantly greater levels of background noise were tolerated when telephone side-tone feedback was eliminated regardless of coupling method.
本研究的目的是确定对于轻度至中度听力损失的耳内式助听器使用者，电磁耦合是否能改善电话通信。每位使用者将其助听器增益调整到他认为最适合每种耦合方式进行电话通信的水平。在这些条件下，每种耦合方式在安静环境中的平均单词识别分数以及在鼓膜处测量的平均高频输出水平并无差异。还研究了耐受背景噪声的能力。两种耦合方式的背景噪声耐受性并无差异。然而，无论耦合方式如何，当消除电话侧音反馈时，能耐受的背景噪声水平显著更高。
