xnsy算法的matlab实现，供参考学习实用，请勿用于商业。-xnsy Algorithm Implementation of Matlab, practical learning for information, please do not for commercial.

经过优化后的AMR-WB的音频编码算法源代码，可以直接应用商业开发,After the optimized AMR-WB audio coding algorithm source code, can be applied directly commercial development