AVS-P10是我国第一部应用于移动环境的音频编解码国家标准。在分析AVS-P10解码算法的基础上，对参考代码进行了精简和封装。针对定点处理器应用需求，对精简后的代码进行了定点化实现和优化。分别采用CMOS评分与SNR指标，对定点解码器的解码质量进行了主、客观测试，并对优化前后的定点解码器的运算效率进行了比对测试。结果表明，提出的AVS-P10定点解码器的解码音质达到与浮点解码信号的音质相当，且运算复杂度明显下降。%AVS-P10 is the first national audio coding standard for mobile applications. This paper reduces and packages the reference source codes of AVS-P10 decoder based on the analysis of algorithm. To meet the demands of applications on fixed-point processor, the fixed-point algorithm of AVS-P10 decoder is implemented and optimized. CMOS as well as SNR is taken to assess the quality of audio signal decoded by the fixed-point decoder. Also, the complexity of the fixed-point decoder is tested. The results indicate that there is no palpable decline of the audio quality between the floating-point and the fixed-point decoder, and the computational complexity significantly decreases.
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