【摘要】 阐述了音频解码器的基本模式和AMR-WB+解码系统总体框架以及解码流程,实现了AMR-WB+解码算法。文章还应用了FPGA开发套件EDK开发工具包,提出了基于FPGA平台的解码器结构设计。进行了在FPGA平台上完成解码器关键算法移植,并就在移植过程中出现的特殊情况进行针对性解决。更多还原

【Abstract】 The AMR-WB+ audio decoder system is introduced,including the codec standard,framework and decoding process of the AMR-WB+ decoder.The AMR-WB+ algorithm are realized.The EDK Development Kit is used to set up the embedded system and to port ANSI C from PC to FPGA platform.The porting steps are given.Problems and solutions during the debugging are also given.Finally,during the debugging,some problems and solutions of the AMR-WB+ decoding algorithm based on FPGA platform are given.更多还原