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meierdaopufadematlabshixian
对录音信号集 中的某一语音,利用BATLAB设计一美尔例谱算法,并实现。
取信号集 中的一个语音信号:“xxxxxx”,将它作为输入的语音信号来为设计一个美尔倒谱算法,在该算法中,主要设计了以下环节:
1.读入一个语音信号;2.对这个信号归一化;3.对归一化的信号进行加窗处理(这里的矩形窗长度必须为257,重帧长64);4.进行预加重处理,即通过一个高通滤波器: ;5进行512点的FFT;6.分别取模平方得到功率谱;7.在设计的mel滤波器组中,我采用了25个带通滤波器;8.将得到的功率谱信号通过mel滤波器组,得到相应的25个功率值;9.对这些功率值取自然对数;10.对这些值取离散作弦变换;11.将得到的值去掉直流分量,取其它值作为MFCC参数。
(Concentrated on recording a voice signal, using BATLAB designed Mayer cases spectral algorithm, and implementation.
Get a voice signal signal focus: "xxxxxx", will it as input for the design of a voice signal to Mel Cepstrum algorithm in the algorithm, the main design of the following links:
1. Read a speech signal 2. On the signal normalized 3. Of the normalized windowed signal processing (here, rectangular window length must be 257, re-frame size 64) 4. For Pre-emphasis processing through a high-pass filter: 5 for 512 points of FFT 6. modulo square were obtained spectrum 7. in the design of mel filter banks, I use a 25 band-pass filter 8 . will be the power spectrum signal by mel filter bank, corresponding to the 25 power values 9. on the power to take the natural logarithm value 10. to take these values as strings of discrete transform 11. will be of value to out DC component, to take other values as MFCC parameters.)
- 2010-09-21 22:01:57下载
- 积分:1
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matlab2
一个很小手势识别工具. 这是我读Master的时候一个小作业. 我是用block FFT 来写的.70 -80 识别率.(A gesture recognition tool.It was a modle assigment, when I was doing my Master degree. I used block FFT. The recognition rate is round 70-80 )
- 2009-09-14 22:07:47下载
- 积分:1
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GA-matlab
遗传算法函数介绍及实用代码,保证能运行,并加上了程序解释和运行结果(Genetic algorithms and practical code function introduced to ensure that will be able to run, with the procedures explained and the results)
- 2008-12-28 22:03:56下载
- 积分:1
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9927432Matlab_and_VC
this is a example about matlab and VC
- 2009-12-12 17:00:57下载
- 积分:1
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hw2_code
non-parametric identification
- 2009-12-16 17:12:31下载
- 积分:1
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model2
code source for simulation
- 2011-01-25 06:26:22下载
- 积分:1
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Sliding-Mode-Control
双电机伺服系统的滑模控制,运行 jieh 可以看到与PID相比的控制效果,运行需要一点时间,2分钟左右,请耐心等待。(Sliding Mode Control of dual-motor servo system)
- 2021-04-29 11:28:43下载
- 积分:1
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lab432
主成分分析和偏最小二乘SquaresPrincipal成分分析( PCA )和偏最小二乘( PLS ) ,广泛应用于工具。此代码是为了显示他们的关系,通过非线性迭代偏最小二乘( NIPALS )算法。
(Principal Component Analysis and Partial Least SquaresPrincipal Component Analysis (PCA) and Partial Least Squares (PLS) are widely used tools. This code is to show their relationship through the Nonlinear Iterative PArtial Least Squares (NIPALS) algorithm.
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- 2009-05-26 21:48:27下载
- 积分:1
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fmrlc_tanker
说明: 大型油轮fmrlc模糊模型参考学习控制程序,外国一相关文献上附带的程序,绝对经典(Large tankers fmrc fuzzy control procedures, the foreign literature on the fringe of a procedure, an absolute classic)
- 2011-02-23 22:59:03下载
- 积分:1
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CGHwatermarkmatlabcode
说明: 关于半色调编码计算全息图的信息隐藏Matlab程序的说明:
算法实现主程序为CGHwatermark;
位相恢复函数为phaseSL;
用计算全息记录已知振幅和位相的复波前函数为Hologen;
半色调编码函数为AMhalftone;
嵌入信息的提取直接调用Matlab自带的FFT2函数;
主程序的函数调用关系如下
读入宿主信息和水印信息-----------phaseSL--->Hologen--->AMhalftone(完成嵌入)--->FFT2(提取水印信息)
主程序结果保存于holo&mark文件夹
对算法鲁棒性测试的程序:
1. 对于剪切操作 Cliptest 结果存放于cliptest文件夹
2. 对于缩放操作 zoomtest 结果存放于zoomtest文件夹
3. 对于旋转操作 rotatetest 结果存放于rotate文件夹
4. 对于滤波操作 filtertest 结果存放于filtertest文件夹
5. 测试算法的时间效率 timetest
6. 分析嵌入信息后图像质量与参数alpha,tao的关系 msetest(err)
- 2008-09-09 10:14:23下载
- 积分:1