Using the function to sample the voice signal and achieve fast Fourier transform in MATLAB, and then get the signal characteristics of the spectrum.Filtering the signal from the filter,and then playback the signal of voice

DPCM编码,简称差值编码，是对模拟信号幅度抽样的差值进行量化编码的调制方式.-DPCM coding, referred to as difference coding is to sample the analog signal amplitude to quantify the difference between the modulation coding.

录制一段自己的语音信号，并对录制的信号进行采样；画出采样后语音信号的时域波形和频谱图；通过matlab界面进行编程设计，界面方便人们操作- Their record a voice signal, and recording the signal is sampled draw sample after the time-domain waveform and frequency spectrum of the speech signal designed by matlab progr

样本熵MATLAB程序,希望可以共享, 此程序可以计算脑电信号EEG的样本熵的值-Sample entropy of the MATLAB program, the hope can be Shared, the program can calculate the brain electrical signal samples of EEG entropy values

Future line prediction, error analysis, Including compression ratio, image restoration computing uptime and peak signal to noise ratio, Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition.