一种适用于窄带无线通信的语音编解码系统设计  

An Audio Codec System Design for Narrow Band Wireless Communication

作　　者：陈咪 CHEN Mi(The 7th Research Institute of China Electronics Technology Group Corporation,Guangzhou 510220,China)

机构地区：[1]中国电子科技集团公司第七研究所,广东广州510220

出　　处：《通信电源技术》2021年第5期92-94,99,共4页Telecom Power Technology

摘　　要：语音编解码系统是无线双工语音通信设备的关键部件。介绍一种基于Xilinx ZYNQ7015的低速率语音编解码系统,通过部署于ZYNQ7015的软件结合语音处理芯片,完成语音信号的模数转换、压缩编解码及语音数据采集,获得速率低至2.4 kb/s的适合无线通信的声码话数据。设计具有硬件设计简单和可扩展性强的特点。Audio codec system is a key component of wireless duplex audio communication equipment.This paper introduces a low rate audio codec system based on Xilinx ZYNQ7015.The system can get the vocoder data with the rate as low as 2.4 kb/s through the software of ZYNQ7015 and the special audio processing chip,which contributes the analog-to-digital conversion,audio signal compression codec and audio data collection.This design has the characteristics of simple hardware and strong expansibility.

关 键 词：无线通信 声码话 语音编解码 

分 类 号：TN9[电子电信—信息与通信工程]