Matlab下直接调用NI采集卡，实时绘制波形并重现声音的例程
A routine that invokes a NI acquisition card directly under Matlab, rendering the waveform in real time and reproducing the sound (2017-12-14, matlab, 1KB, 下载12次)
语音信号时域波形、能量谱及过零检测，对过零点数目检测
Voice signal time-domain waveform, energy spectrum and zero-crossing detection, the number of zero-crossing detector (2017-03-23, matlab, 1KB, 下载12次)
语音信号处理中，中心削波处理前后波形对比，中心削波前后修正自相关对比
In the speech signal processing, the comparison of the waveform before and after the center clipping, and the correlation correction before and after the center clipping (2017-03-05, matlab, 5KB, 下载11次)
基于DTW算法实现的语音识别程序，可以识别数字0 9，以及“正弦波，方波，三角波”，并将波形识别结果装入TXT文件中！
DTW algorithm based on speech recognition program that can recognize digits 0 to 9, and sine, square, triangle, and waveform recognition result is loaded into a TXT file! (2015-12-06, matlab, 1057KB, 下载17次)
该程序实现对于语音信号的在不同矩形窗下短时自相关函数的计算并绘制波形
The short-term program for calculating the correlation function and draw from different rectangular window in the speech signal waveform (2014-04-13, matlab, 4KB, 下载6次)
对于录制的语音，获取语音信号的波形，频谱图以及倒谱图.
For the recorded voice, for speech signal waveform, a spectrum of inverted spectrum. (2013-09-17, matlab, 350KB, 下载8次)
基于语音信号处理的线性预测分析法
可作出预测波形已经预测信号的spectrum
Predict the spectrum of the signal to make predictions based on linear prediction analysis of the speech signal processing waveform (2012-10-26, matlab, 1KB, 下载4次)
录音界面，有语音播放、波形文件加载和存储功能，
Recording interface, with voice playback, wave file to load and store functions,
(2012-02-01, matlab, 3KB, 下载13次)
基于matlab的语音端点检测的程序，用于检测语音端点并在波形图中作出标记
Matlab speech endpoint detection based on the procedures used to detect voice activity and make a mark in the waveform (2011-06-11, matlab, 1KB, 下载11次)
对录音信号集 中的某一语音，利用MATLAB设计一系统函数为
，检查语音信号通过该系统后，特征是否发生变化。
Focused on the recording of a voice signal, using MATLAB to design a system function to check the voice signal through the system, the feature is changed. (2011-05-18, matlab, 1369KB, 下载4次)
首先提取语音信号，并对其加单频噪声，设计IIR滤波器，滤除单频噪声，显示滤除前后时域波形的对比，并播放滤除后的语音信号。
First, extract the speech signal, and add single-frequency noise, design IIR filters to filter out single-frequency noise. Display the time-domain waveform before and after filter, and play the voice signal after filtering. (2011-04-07, matlab, 1KB, 下载12次)
用matlab仿真0到9十个数字的语音识别
1、对语音的WAV文件和LAB文件进行处理，产生十个文件，每个文件对应于一个数字，存贮着该数字的波形文件。（shujuzhengli.m）
2、分别利用上面十个文件训练出十个HMM模板，具体方法是：首先将语音的波形文件分帧，以128个点为一帧，帧移为64，每一帧通过mfcc.m计算出13个系数，随着波形的长度不同，一个语音文件可以计算得到13*N个系数，截取13*15的矩阵（mfcc系数）用作训练数据。一般一个HMM模板用20组mfcc系数训练，得到初始状态分布、状态转移矩阵、高斯正态分布的均值和方差以及混合矩阵，这就是该语音的特征，存贮下来，识别的时候使用。（trainmfcc.m）
3、识别过程：识别的前面部分与训练相似，都是要计算得到mfcc系数，不同在于，识别时，将计算得到的mfcc 参数分别代入训练得到的HMM模板求出概率，比较出最大概率者，则该模板对应的数字就是识别的数字。(shibiesb.m)
4、用大量语音文件做测试，结果正确率为90 以上。
Speech Recogonition: Mumber 0-9 (2011-01-10, matlab, 109KB, 下载614次)
题目要求：
1.录制一段自己的语音信号，并对录制的信号进行采样；
2.画出采样后的语音信号的时域波形和频谱图；
3.给定滤波器的性能指标，采用窗函数法和双线性变换法设计滤波器，
并划出滤波器的频域响应；
4.用该滤波器对采集的信号进行滤波，画出滤波后信号的时域波形和频谱，
并对滤波前后的信号进行对比，分析信号的变化；
5.回放语音信号；
6.设计一个信号处理系统界面。
Subject to: 1. Recorded his voice for some signal, and recording the signal is sampled 2. Draw the sampled speech signal time-domain waveform and frequency spectrum 3. For a given filter performance, using window function bilinear transformation design method and filter, and set aside the filter frequency response 4. with the filter on the collection of signal filtering, to draw the filtered signal in time domain waveforms and frequency spectrum, and before and after filtering The signal contrast, analysis of signal changes 5. playback of audio signals 6. to design a signal processing system interface. (2010-08-23, matlab, 2KB, 下载13次)
隐马尔科夫异常声音识别程序，无噪声情况下训练后可识别
Hidden Markov abnormal voice recognition program, no noise can be identified under training (2010-05-12, matlab, 572KB, 下载65次)
语音信号处理的最基本的Maylab处理程序，包括读入语音波形，清音浊音的检测，加窗，过零率，短时能量，基音最大值。
The basic speech signal processing Maylab handling procedures, including reading speech signals, voiceless voiced detection, windowed, zero crossing rate, short-term energy, pitch maximum. (2010-04-29, matlab, 180KB, 下载18次)
时域波形、短时能量、短时平均幅度、短时过零率、短时过电平率
Time-domain waveform, short-term energy, short-term average rate, short-term zero crossing rate, short-term rates over Level (2009-12-25, matlab, 1KB, 下载71次)
语音信号的线性预测编码分析，生成语音信号的波形图，共振峰
The linear predictive coding speech signal analysis, speech signal waveform is generated, formant (2009-12-21, matlab, 1KB, 下载229次)
语音识别，能量计算，过零率检测，发生点检测，用于音符切分
Speech recognition, energy calculation, zero-crossing rate detection, point detection occurs for note segmentation (2009-12-16, matlab, 20814KB, 下载113次)
用MATLAB对原始语音信号进行分析，画出它的时域波形和频谱
Using MATLAB to carry out the original speech signal analysis, to draw its time-domain waveform and spectrum (2009-05-23, matlab, 4KB, 下载13次)
matlab数字语音分析模块(已调试）：
倒谱、复倒谱、对数谱、自相波形等。
matlab digital voice analysis module (has debug): cepstrum, complex cepstrum of the spectrum, such as self waveform. (2008-12-29, matlab, 1KB, 下载99次)