G.721算法的matlab编程，自己编写的，程序没任何问题。另一部分是G.721算法的BP改进，SNR提高不大！-G.721 algorithm matlab programming, I have written, the program did not any problems.

实现正弦编解码（Sinusoidal coding)的matlab程序 sinusoidal_analysis.m文件定义了函数[A, F, P, fs] = sinusoidal_analysis(filename, framelen, frameshiftlen)，将*.wav音频文件提取出A, F, P这3个参数矩阵。 sinusoidal_synthesis.m文件定义了函数syspeech = sinusoidal_synthesis(A, F, P, fs, framelen

A short-time analysis-synthesis system for speech is developed in MATLAB using the Filter Bank Summation (FBS) method. Provision for different sampling rates at analysis and synthesis means rate change can be carried out.

参考_基于SOLA的Pitch Scaling算法 范钰华(上海交通大学)_,使用MATLAB实现SOLA算法,可以在变调不变速的基础下改变声调,程序比较易懂.适合初学者参考的,另外,VOICE_GUI是界面,介绍一些简单的语音处理,请大家多多指教speech_processing(sola)-Reference _ SOLA' s Pitch Scaling Algorithm Based on Fan Yu Hua (Shanghai Jiaotong University) _, u