混合励线性预测(MELP)的C语言实现代码，其码速率为2.4kbps，可生成语音压缩文件，压缩比大概为10倍。-Mixed excitation linear prediction (MELP) C language code, its code rate is 2.4kbps can generate voice compression file compression ratio is about 10 times.

将AMR的12.2k的语音编码的c代码转换为mex文件使其可以被matlab调用，在matlab2014中命令窗输入mex+空格+三个c文件名字（注意encode.c放在最前面）生成可执行文件，就可以调用encode函数。-The AMR 12.2k speech coding in C code conversion for mex file so that it can be called by the MATLAB. In the matlab2014 command window inp