基于DM642的G．729A语音解码系统的设计实现与优化  

The Design and optimization of G.729A Voice Decode System Based on DM642

作　　者：夏青 马武举 

机构地区：[1]中国船船重工集团公司第七一〇研究所,湖北省宜昌市443003

出　　处：《中国电子商情（通信市场）》2013年第1期59-64,共6页

摘　　要：设计实现了基于DM642的G.729A语音解码系统，着重利用存储器系统优化、软件流水优化、线性汇编优化和内联函数优化降低了代码的运算复杂度并减小系统延迟，提高语音解码系统的整体性能。经测评，优化后的解码器能够实现多媒体语音和数据的同步实时传输。G.729A voice decode system based on DM642 is designed and implemented, storage system optimization, soft flow optimization, linear assembler optimization and Intrinsic function optimization are used to decrease the calculation complexity and reduce the system time of delay. The overall performance of the voice decode system is improved obviously. By testing and comparison, the optimized voice decode system can transfer the voice and data lively and synchronously.

关 键 词：G 729A 语音解码 DM642 优化 

分 类 号：TN911.72[电子电信—通信与信息系统]