Qian Haifeng, Loizou Philipos C, Dorman Michael F
Department of Electrical Engineering. University of Texas at Dallas, Richardson, TX 75083-0688, USA.
IEEE Trans Neural Syst Rehabil Eng. 2003 Sep;11(3):282-7. doi: 10.1109/TNSRE.2003.816871.
Hearing-impaired people, and particularly hearing-aid and cochlear-implant users, often have difficulty communicating over the telephone. The intelligibility of telephone speech is considerably lower than the intelligibility of face-to-face speech. This is partly because of lack of visual cues, limited telephone bandwidth, and background noise. In addition, cellphones may cause interference with the hearing aid or cochlear implant. To address these problems that hearing-impaired people experience with telephones, this paper proposes a wireless phone adapter that can be used to route the audio signal directly to the hearing aid or cochlear implant processor. This adapter is based on Bluetooth technology. The favorable features of this new wireless technology make the adapter superior to traditional assistive listening devices. A hardware prototype was built and software programs were written to implement the headset profile in the Bluetooth specification. Three cochlear implant users were tested with the proposed phone-adapter and reported good speech quality.
听力受损者，尤其是助听器和人工耳蜗使用者，在通过电话交流时常常遇到困难。电话语音的清晰度远低于面对面语音的清晰度。部分原因在于缺乏视觉线索、电话带宽有限以及背景噪音。此外，手机可能会对助听器或人工耳蜗造成干扰。为了解决听力受损者在使用电话时遇到的这些问题，本文提出了一种无线电话适配器，可用于将音频信号直接路由到助听器或人工耳蜗处理器。该适配器基于蓝牙技术。这项新无线技术的优势特性使该适配器优于传统的辅助听力设备。构建了一个硬件原型，并编写了软件程序以实现蓝牙规范中的耳机配置文件。对三名人工耳蜗使用者进行了所提议的电话适配器测试，他们反馈语音质量良好。
