无线便携式人工耳蜗调试系统的设计

摘要

Objective In order to facilitate the research of new cochlear implant algorithm and to develop inexpensive cochlear implant device based on mobile phone,this paper proposed a design of a portable cochlear implant research platform system with wireless transmission function based on mobile phone. Methods At first, this system embedded the programs such as audio signal acquisition, cochlear implant speech coding and processing algorithms, then implemented wireless data transmission with the coding and modulating hardware unit through Wi-Fi function. Finally, the coding and modulation hardware unit output RF signals according to specific coding and modulation protocols, the output signals were sent to the implanted part through a transmitting coil. Results After evaluating the processing results and testing the output RF signals,we verified that this system had the capacities of processing audio signals with cochlear implant strategy accurately, adjusting cochlear implant parameters, and controlling the coding and modulating hardware units to send thernright modulated RF signals according to the specific protocols. Conclusions This system provides an effective research platform for the development of new cochlear implant algorithms and personalized cochlear parameter tests.%目的 为方便对人工耳蜗新算法进行调试,并为研发基于手机平台的价格低廉的人工耳蜗设备,本文研制了一种基于手机无线传输功能、便携式的、能对人工耳蜗进行调试的系统.方法 首先在智能手机平台上嵌入语音信号采集、人工耳蜗语音编码算法等程序,然后利用手机内置Wi-Fi模块的无线数据传输功能,实现手机与编码调制硬件单元的无线数据传输,按照特定的编码和调制协议输出携带语音信息射频信号给人工耳蜗植入体.结果 通过对语音处理结果的对比和输出射频信号的测试,验证了该调试系统能够准确地对语音信号进行算法处理和参数调试,并按照编码协议控制编码调制盒输出正确的射频信号.结论 系统为人工耳蜗新算法的开发和个性化人工耳蜗的参数调试提供了有效的研究平台.