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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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BGA
BGA Binary Genetic Algorithm Matlab Code
- 2009-05-07 15:13:04下载
- 积分:1
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C-C5
说明: 基于改进的C-C方法的相空间重构参数选择5.rar(CC based on improved methods of phase space reconstruction parameters 5.rar)
- 2008-09-20 11:49:53下载
- 积分:1
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MATLAB-prog
convolution between two sequences
- 2011-07-25 01:04:42下载
- 积分:1
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wg_dispersion
waveguide dispersion simulation
- 2014-11-10 21:03:33下载
- 积分:1
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Phase-locked-loop
用于解决单相并网中的锁相环问题,并实现相应的仿真验证探究。(To solve the problem of single phase grid connected in phase locked loop)
- 2015-03-30 10:35:42下载
- 积分:1
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sspecfun
可用于对信号的频谱进行分析,希望站长能整理好,以便大家互相学习(Can be used to signal spectrum analysis, hoping to organize a good station, so that we learn from each other)
- 2007-12-17 14:48:39下载
- 积分:1
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func_ant_colony_image_edge_detection
说明: 用蚁群算法做图像边缘检测,过程中采用四种核函数用来做分割,最后产生不同结果用来比较。(Using ant colony algorithm to do image edge detection, the course of four kernel function used for partitioning, and finally used to compare different results.)
- 2008-10-21 16:43:49下载
- 积分:1
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matlab_0_1Problem
说明: 基于MATLAB的非线性0-1规划的求解
- 2009-08-28 12:22:11下载
- 积分:1
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CCMethod
用来计算混沌时间序列的延迟时间,It s applied to calculate the delay time of chaos time series,(used to calculate chaotic time series, the delay time, It's applied to calculate the delay time of chaos time series,)
- 2007-05-10 17:11:19下载
- 积分:1