三代移动通信变速率语音编解码AMR-WB+算法优化

The research and Optimization of variable-rate speech coding algorithm AMR-WB+ in the Third-generation mobile communications

首先简要介绍了AMR-WB+语音压缩算法的基本原理,描述了AMR-WB+编解码流程;然后通过两类优化策略对AMR-WB+算法进行优化;最后给出了优化前后编解码复杂度比较,并对结果进行了分析。

First,this paper briefly introduced to the basic principles about the algorithms of AMR-WB＋,and described in the AMRWB＋ encoder/decoder processes.Then,the algorithms of AMR-WB＋ was optimized by the two optimization strategies.Finally,the encoder/decoder complexity was compared,which was between before and after the optimization,and analyzed the results.