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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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space_vector_pwm_generation
永磁同步电机PMSM空间矢量控制SVPWM 仿真模型(Permanent magnet synchronous motor PMSM space vector control SVPWM simulation model)
- 2012-05-22 14:40:20下载
- 积分:1
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gabor
Computes Popular Gabor descriptor
- 2012-02-01 15:31:27下载
- 积分:1
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Simulation-of-flexible-robot-arm
使用最小二乘法对模型阶数和时滞未知的一种柔性机器人手臂进行辨识与建模。(Identification and modeling of a flexible robot arm with the least square method for model order and time delay.)
- 2020-11-06 21:29:49下载
- 积分:1
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Matlab
包含了matlab编程基本教程及多个编程实验内容(Contains the experimental content of the basic matlab programming tutorial and multiple programming
)
- 2012-04-13 11:32:44下载
- 积分:1
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MATLAB_function_library
MATLAB函数库查询辞典,本辞典紧跟MATLAB的发展动态,搜集整理了1000条MATLAB的使用函数,并在介绍函数使用的过程中对语法、描述、实例进行了详细的讲解,帮助读者更深入的掌握MATLAB知识,达到触类旁通的效果。(Developments of the Dictionary of keeping MATLAB, has collected more than 1,000 MATLAB using the function, and in the process of introduction function uses the syntax described instance a detailed explanation to help readers grasp MATLAB knowledge reached by analogyeffect.)
- 2013-01-14 00:47:20下载
- 积分:1
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introduction-to-power-electronics_engineering108
intrioduction to power electronics
- 2013-10-25 07:17:39下载
- 积分:1
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bubianfenbu
基于单项耦合映像格子的不变分布求解及画图(Based on the the single coupled map lattice constant distribution solving and drawing)
- 2012-11-23 19:47:15下载
- 积分:1
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AHP
层次分析法(AHP),可以用来对于选择学校选择职位之类的事情进行决策(Professor Satty proposed AHP)
- 2009-05-29 20:28:20下载
- 积分:1
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BandSolver2
This is a bandsolver source code programmed with Matlab. Bandsolver is one of the most usefuel solving method in FEM analysis.
- 2013-12-07 11:11:02下载
- 积分:1