AMR Speech Codec Realization And Optimization Based On TMSCx55 DSP

摘要：

Timeliness is the key requirement when AMR codec is realized in DSP. In this paper,the code optimization is implemented for the AMR codec when realizing on the TIR TMS320VC5509 DSP hardware platform. In order to improve the code efficiency,comprehensive assembly instructions are rewritten firstly after the comprehensive analysis on the AMR algorithm,and then hybrid coding is implemented to combine the advantage of C programming and DSP-based assembly language programming. The test on DSP verifies that the AMR codec realization and code optimization enhance the code efficiency and achieve satisfactory results.

关键词： DSP assembly language programming C programming code optimization timeliness

作者: Yan Zhao Yuyan Zhang Junhui Zhao Mang Jing

作者单位: Key Lab of universal Wireless communication,ministry of Education Beijing University of Posts and Telecommunications Beijing,China,100876 School of Electronic and Information EngineeringBeijing Jiaotong University Beijing,China,100044

会议类型: 国际会议

会议名称: 2011 International Conference on Opto-Electronics Engineering and Information Science(2011光电电子工程与信息科学国际会议 ICOEIS 2011)

会议地点: 西安

会议语种:英文

页码: 2375-2379

在线出版日期: 2011-12-23（万方平台首次上网日期，不代表论文的发表时间）