基于TMS320C6416的DRM音频解码实现及优化  

Realization and optimization of audio decoder in DRM system based on TMS320C6416

作　　者：崔颖[1] 赵宇[1] 马永涛[1] 刘开华[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072

出　　处：《电子技术应用》2011年第5期31-34,共4页Application of Electronic Technique

基　　金：天津市科技支撑计划重点项目(编号:09ZCKFGX29200)

摘　　要：给出了数字广播调幅系统DRM的AAC音频解码器在定点DSP芯片TMS320C6416上的实现方案,从多方面对AAC音频解码器的关键技术进行优化。实验结果表明,算法的运行速度提高了10倍,存储器占用情况有较大改善,为DRM广播信号解码系统执行音频解码之前的解调和信道解码程序节省了很大的周期资源和处理空间。This paper presents the solution of AAC audio decoder in digital radio mondiale on TMS320C6416. Various of its key technologies are optimized. Experiment results show that the algorithm runs ten times faster and the memory used has been improved considerably, saving a lot of processing space and resource for the decoding system of DRM broadcast signal to implement demodulation and channel decoding before audio decoding.

关 键 词：DRM AAC 音频解码 TMS320C6416 

分 类 号：TN914[电子电信—通信与信息系统]