说明：  matlab中简单语音处理，包括小波滤波，端点检测和mfcc参数提取，输出amf为所读取的语音文件24*1维的mfcc参数
(Matlab simple voice processing, including wavelet filtering, endpoint detection and MFCC parameter extraction, output amf for the read voice file 24*1 dimensional MFCC parameters)