Clemis J D, Ballad W J, Killion M C
Ann Otol Rhinol Laryngol. 1986 Sep-Oct;95(5 Pt 1):520-4. doi: 10.1177/000348948609500515.
There are several applications of and advantages to using an insert earphone. An insert earphone has three parts: a transducer to convert electrical energy to sound, a conduit to deliver the sound into the ear canal, and a coupler connecting the device to the canal. The data from this study indicate that there is a distinct advantage in using insert earphones over TDH-49 phones (standard headphones) in the attenuation of low frequency ambient noise. The use of insert earphones will permit one to test hearing in areas of higher ambient noise than was previously possible. Insert earphones are used to shorten the hearing aid selection process. A technique is described in which only one real ear measurement is required for an accurate hearing aid fitting. Most, but not all, of the masking dilemmas that are encountered with standard headphones are circumvented or eliminated by using insert earphones. In brain stem auditory evoked response testing, the insert earphone reduces the stimulus artifact without influencing the acoustic signal. Finally, the insert earphone solves the collapsing ear canal problem.
使用插入式耳机有多种应用和优点。插入式耳机有三个部分：一个将电能转换为声音的换能器、一个将声音传送到耳道的导管以及一个将设备连接到耳道的耦合器。这项研究的数据表明，在衰减低频环境噪声方面，使用插入式耳机比TDH - 49耳机（标准耳机）具有明显优势。使用插入式耳机将使人们能够在比以前更高的环境噪声区域进行听力测试。插入式耳机用于缩短助听器的选配过程。文中描述了一种技术，即准确选配助听器仅需进行一次真耳测量。使用插入式耳机可规避或消除大多数（但并非全部）与标准耳机相关的掩蔽难题。在脑干听觉诱发电位测试中，插入式耳机可减少刺激伪迹而不影响声信号。最后，插入式耳机解决了耳道塌陷问题。
