麦克风阵数字助听器实验平台研究与设计  

The Study and Design of Digital Hearing Aid Platform Based on Microphone Array

作　　者：戴红霞[1] 王剑[2] 赵力[2] 

机构地区：[1]江苏信息职业技术学院电子信息工程系,江苏无锡214153 [2]东南大学信息科学与工程学院,南京210096

出　　处：《电子器件》2011年第6期723-726,共4页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(60975017;51075068)

摘　　要：随着现代数字信号处理技术的发展,数字助听器已经基本成为助听器的主流。在综合考虑助听器实时性及功耗,大小等诸多要求后,提出利用麦克风阵列改善助听器听觉效果,设计了基于麦克风阵列的数字助听器系统开发平台。平台以DSP芯片TMS320C6747为核心CPU,TLV320AIC32为音频AD采样芯片。在该平台上,对声源定位算法做了详细研究,提出了提高语音质量的方法。With the development of the digital signal processing technology, digital hearing aids have become mainstream products in the acoustic area industry. Considering some problems of shortcoming in its qualities such as real-time performance, size and power consuming, the study constructs a development platform of hearing aid based on microphone arrays to improve auditory perception. The platform uses the TMS320C6747 chip as a core CPU and TLV320AIC32 audio converter for sampling. On the platform, various source localization algorithms have been studied in detail. Furthermore, an improved method is proposed.

关 键 词：DSP 数字助听器 麦克风阵列 声源定位 

分 类 号：TN912.34[电子电信—通信与信息系统]