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ding
选取windows系统自带的ding.wav信号作为分析对象,在Matlab软件平台下,利用函数wavread对音频信号进行采样,记住采样频率和采样点数,听一下原始声音sound(y, fs, bits)。
(2)音频信号的频谱分析,先画出音频信号的时域波形;然后对音频号进行快速傅里叶变换fft(y,N),N取32768,画出信号的频谱特性,加深对频谱特性的理解。
(3)根据频谱,反演时域特性,画出时域波形。寻找幅值最大的两个频率,此频率除以fft点数在乘以采样频率就是信号的主频,即可合成信号的时域图形,听一下声音。
(4)对原音频信号进行1024点的分段付立业分析meshgrid
(5)根据主要频线合成音频,并画出时域图形,试听合成效果。
(6)采用线性插值(linspace)和傅立业反变换(fliplr, ifft)分别合成音频,并画出时域图形,试听效果。
(err)
- 2009-01-13 16:23:47下载
- 积分:1
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u8
说明: U8无人直升机 悬停 线性系统数学模型 稳定性分析 控制输出(U8 unmanned helicopter hovering linear system mathematical model of stability analysis and control output)
- 2013-04-19 16:54:49下载
- 积分:1
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cs-514
This is the previous year question paper of Software Engineering and Methodologies of M.Tech CSE
- 2014-01-20 23:04:10下载
- 积分:1
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circle_fit
Revival of a 14 years old code (written in 1991 for MATLAB 2.x).
Given a set of measured x,y pairs that a re supposed to reside on a circle, but with some added noise. A circle to these points, i.e. find xc,yc,R, such that (x-xc)^2+(y-yc)^2=R^2
The method minimizes the sum of squared radial deviations.
- 2012-08-22 17:12:30下载
- 积分:1
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Nhom5
matlab demo for image compression by wavelet transform
- 2010-11-25 16:56:36下载
- 积分:1
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MATLAB-Getting-Started-Guide
Matlab User s guide pdf
- 2011-11-02 16:07:26下载
- 积分:1
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ZHIJIEFA
这里讲述的是matlab的线性方程直接法问题,含有多个程序可提供给大家参考
(About matlab direct method of linear equations, containing more than one program can be provided for your reference)
- 2013-04-26 23:03:19下载
- 积分:1
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depth-map
深度图生成,基于立体匹配获取的深度图质量较好(Depth map, depth map based on good quality stereo matching Being)
- 2016-05-31 11:34:37下载
- 积分:1
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结构动力学-newmark
说明: 学习结构动力学newmark法的简单程序,单自由度和受迫振动(A Simple Program for Learning the Newmark Method of Structural Dynamics, Single Degree of Freedom and Forced Vibration)
- 2020-07-03 19:40:02下载
- 积分:1
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m
说明: 参加数模过程中自己找的关于数学建模的一些代码(Participate in the process of digital-analog on the mathematical modeling on your own some of the code)
- 2011-04-26 09:39:11下载
- 积分:1