语音编码技术及其硬件实现  

Development of Speech Encoding and Its Hardware Implementation in Voice Communication

作　　者：张鑫[1] 孙峰[1] 邓代竹[1] 

机构地区：[1]华中光电技术研究所-武汉光电国家实验室,湖北武汉430074

出　　处：《光学与光电技术》2009年第5期12-14,共3页Optics & Optoelectronic Technology

摘　　要：压缩编码技术是无线语音通信的关键技术之一。介绍了语音编码技术的基本概念及分类,并选用AMBE多带激励压缩编码算法,通过单片机控制专用语音压缩DSP芯片,提出了一种适合低速无线语音、数据实时通信的系统解决方案,完成了硬件、软件设计,实现了低速率下的语音、数据的同步大气传输。测试结果显示,在语音编码速率为2.4 kbps以下时,仍然可以得到音质较好的语音输出。Speech encoding is a key technology in wireless voice communication systenx The concepts and classification of speech encoding are introduced in this paper. An AMBE algorithm is selected for low speed wireless real-time communication system. The hardware and software design about the solution are described by using microcontroller and DSP. The voice data could be transferred at lower baud rate. Even being coded at the baud rate of 2. 4 kbps, voice could still be understood easily.

关 键 词：语音编码 多带激励压缩编码算法 语音通信 帧格式 

分 类 号：TN912.3[电子电信—通信与信息系统]