基于DSP的G.729算法优化实现

摘要

This paper introduced the software and hardware structure of DSP real-time codec system which takes the TMS320VC5402 as the core,focusing on TLV320AIC23 chip and DSP the interface design,and proposed the optimum scheme for G.729 codec algorithm.The experiments verified that this system can have the speech codec,restore and replay the reconstructive speech,compare the reconstructive speech with the original speech,and verify the correctness and portability of the optimized algorithm.%介绍了以TMS320VC5402为核心的DSP实时编解码系统的软、硬件结构,着重介绍了语音采集芯片TLV320AIC23芯片与DSP接口设计,并对G.729编解码算法原理及程序给出了优化方案.经实验验证,该系统可以进行语音编解码并还原回放重建语音,对重建语音与原始语音进行对比,验证优化后算法的正确性及可移植性.