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Description: 语音信号的录音、读入、放音等：利用函数wavread对语音信号进行采样,记住采样频率和采样点数，给出以下语音的波形图（2.wav），wavread的用法参见mablab帮助文件。利用wavplay或soundview放音。也可以利用wavrecord自己录制一段语音，并进行以上操作(需要话筒)。-Speech signal recording, reading, playback, etc.: the voice signal using the function wavread sampling, sampling frequency and sampling points to remember, given the following speech waveform (2.wav), wavread usage see mablab help file. Using wavplay or soundview playback. Can also record a voice using wavrecord own, and the above operation (requires microphone).
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Size: 367616 |
Author: liujia |
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Description: 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
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Size: 111616 |
Author: Fatso Ding |
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Description: 自己写的基于matlab的WAV声音文件报警的仿真程序-Write their own based on the WAV sound files matlab simulation program alarm
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Size: 1024 |
Author: 郑闽豪 |
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Description: 实现基频提取的RAPT算法（一种鲁棒性的基频提取算法）。输入文件为wav波形文件。-A Robust Algorithm for Pitch Tracking (RAPT)
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Size: 7168 |
Author: camel |
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Description: 语音信号的延时和混响设计
语音信号的延时和混响设计-signal delay
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Size: 312320 |
Author: monique |
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Description: Just reads mp3 file and converts it to wav. Not a fact that it works completely correct, but some algorithms, may be useful.
wav = mp3read(inpath, outpath)
outpath is unused.
inpath - path to mp3 file -Just reads mp3 file and converts it to wav. Not a fact that it works completely correct, but some algorithms, may be useful.
wav = mp3read(inpath, outpath)
outpath is unused.
inpath - path to mp3 file
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Size: 20480 |
Author: axel |
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Description: zxb:提取wav波得语音声学特征MFCC，以及用praat提取wav波的基频。-zxb: extract acoustic features of voice wav wave was MFCC, and extracted with praat wav wave fundamental frequency.
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Size: 161792 |
Author: 廖畅 |
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Description: 基于Matlab的音频文件数字滤波处理。本文基于Matlab分析了wav声音文件频谱与声音的关系，并给出了不同采样频率对输出声音信号的影响。-Matlab-based digital filter processing of audio files. This analysis based on Matlab wav sound files and sound relationship between the spectrum and gives different output sampling frequency of the sound signals.
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Size: 371712 |
Author: beifang |
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Description: this source describes a demo that writes down in music score from wav file.
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Size: 1267712 |
Author: Chisato |
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Description: Matlab Code to filter data using the Least Mean Squares adaptive algorithm. processes an input WAV file and filters out noise according to the setup parameters
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Size: 9216 |
Author: rudzz |
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Description: 读取wav文件，使用matlab来播放wav格式歌曲的代码-Read wav files, wav format using matlab to play the song code
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Size: 48128 |
Author: 胡建 |
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Description: 用MATLAB对声音进行处理，对声音信号的读取、混叠、回放，并且生成处理前和混叠后WAV格式的音频格式，-Using MATLAB for processing of sound, the sound signal read, aliasing, playback, and to generate pre-and post-aliasing WAV formatAudio format,
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Size: 1024 |
Author: w m c |
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Description: 用Matlab计算wav文件的基频，并讲基频写入excel文件。-Calculated using Matlab wav file baseband and speak baseband write excel file.
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Size: 5120 |
Author: yaoyun |
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Description: 读wav音频文件，相空间重构，计算利亚普诺夫指数，kolmogrov熵-To read wav audio files, the phase space reconstruction, calculate the Liapunov index, kolmogrov entropy
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Size: 9216 |
Author: 梁庆真 |
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Description: matlab对wav文件进行频谱分析，并得出频谱图-matlab wav file, spectral analysis, and draw spectrogram
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Size: 129024 |
Author: lwl |
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Description: matlab小波去噪程序，包含语音信号，和一维吸信号-wavelet denoise matlab code，including wav signal and one d signal。
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Size: 3072 |
Author: 张浩 |
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Description: 使用matlab的waveread函数读入两个.wav格式的数据文件，采用补零或截取方式使它们具有相同长度，然后分别完成序列的延迟/超前/加/标乘及卷积运算，对运算结果采用wavwrite函数写为.wav文件并加以播放(或用sound直
接播放)，分析上述操作对序列的实际影响
-Use of matlab waveread function reads two. Wav format data files, using zeros or intercepting a way that they have the same length, and then complete the sequence, respectively, the delay/advance/plus/standard multiplication and convolution of the calculation results using wavwrite function is written as a. wav file and play them back (or sound direct playback), analysis of the actual impact of operations on the sequence
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Size: 2048 |
Author: 尚磊 |
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Description: 实用的基于matlab设计的wav音乐播放器，包括暂停，停止，播放例表，循环播放等功能-Practical design based on matlab wav music player, including pause, stop, play, case statement, loop playback and other functions
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Size: 45056 |
Author: fred |
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Description: WAV音频的LSB信息隐藏，隐藏文件为二值图像，Matlab编程-WAV audio LSB information hiding, hidden files as binary image, Matlab programming
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Size: 1690624 |
Author: hua |
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Description: 用MATLAB对WAV音频文件加密，加密以后，会听到噪声的干扰。-Using MATLAB WAV audio file encryption, encryption later, you will hear noise.
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Size: 2048 |
Author: 张龙龙 |
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