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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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ex1
染色体识别与统计,识别其中的染色体并统计其数目,我们采用Matlab平台提供的一些图像处理函数.(Chromosome identification and statistics, to identify the chromosome and the number of statistics, we have adopted a Matlab platform provides a number of image processing functions.)
- 2009-04-21 09:47:24下载
- 积分:1
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lagrange
实现拉格朗日插值,和用拉格朗日插值拟合函数(Lagrange interpolation to achieve, and the fitting function with the Lagrange interpolation)
- 2010-11-09 15:48:14下载
- 积分:1
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kNearestNeighbors
program to find the k - nearest neighbors (kNN) within a set of points.
Distance metric used: Euclidean distance
- 2010-12-21 15:51:38下载
- 积分:1
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deriv
This function returns the numerical derivative of an analytic function.
Of special note, is the incorporation of the "complex stepderivative"approach which offers greatly improved derivative accuracy compared to approximations. This is especially germain when accuracy at the level of machine precision is a concern.
(Programming the finite element toolbox using matlb finite element toolbox, many examples for yourself as there is a very friendly interface, input parameters can be)
- 2010-12-26 14:19:33下载
- 积分:1
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empirical-histogram_matlab-code
计算经验直方图的matlab程序
包括程序注释和样本测试结果(Computing experience histogram matlab procedures, including program notes and sample test results)
- 2013-12-11 10:14:25下载
- 积分:1
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Kmeans
kmeans 实现2维情形的聚类,自己编写的一个matlab实现(kmeans
)
- 2010-11-21 16:02:49下载
- 积分:1
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simulinkDsp28335
用matlab/simulink对DSP(28335)编程,避免繁琐的程序编写并降低了出错概率(Use matlab/simulink for DSP (28335) programming, to avoid cumbersome procedures for the preparation and reduce the probability of errors)
- 2015-06-01 21:02:53下载
- 积分:1
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3536_New_MATLAB_code
MATLAB有限元结构动力学分析与工程应用的源代码和数据文件(" MATLAB finite element structural dynamics analysis and practical application" of the source code and data files)
- 2010-09-23 08:33:10下载
- 积分:1
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Riemann
积分用,matlab下的,大家可以看看,还可以(Riemann)
- 2009-05-31 16:54:04下载
- 积分:1