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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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Signal_Processing
1.产生正弦信号,方波信号,均匀噪声;
2.信号的叠加;
3.信号的相关分析;
4.信号的卷积;
5.信号的和;
6.信号的频谱图。(1. Generate sine signal, square wave signals, uniform noise
2. Signal superposition
3. The signal correlation analysis
4. The convolution of signal
5. The sum of signal
6. The signal spectrum.)
- 2013-07-13 21:50:22下载
- 积分:1
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chp2ex1gui
GUImatlab程序负载的特性变化导致电源功率变化的不同(GUImatlab program characteristics of the load changes lead to changes in the different power supply
)
- 2011-11-26 00:10:17下载
- 积分:1
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floyd-shortest-path-algorithm
floyd shortest path algorithm
- 2015-03-12 20:01:13下载
- 积分:1
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TutorialonGMM-Kmean-VitebeAlgorithms
说明: GMM和KMean算法的易懂教程及Matlab实现、Vitebe译码算法的Matlab实现(Tutorial on GMM and KMean and Vitebe algorithms and their implementation in Matlab)
- 2010-04-01 22:50:11下载
- 积分:1
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timer
一个基于matlab实现的计时器源码,供大家学习。(A matlab implementation of the timer source for everyone to learn.
)
- 2012-04-28 11:53:10下载
- 积分:1
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quanweiguanceqi
现代控制理论中权威观测器的实现 matlab中用于UI6008数据采集卡的数据采集以及输出的程序 使用方便快捷(Modern control theory in the implementation of the authoritative observer matlab for UI6008 data acquisition card for data acquisition and output procedures using the convenient)
- 2012-07-30 12:28:42下载
- 积分:1
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Trigonometric-function
当自变量在一定的区间变化,不同三角函数求解不同的图形。(When the independent variable in a certain range of change, trigonometric function to solve different graphics.
)
- 2013-04-10 19:49:49下载
- 积分:1
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type1_windfarm
说明: 用simulink搭建的双馈风机模型,可用于风机并网的模拟,计算。较为复杂(Double-fed fanThe model of doubly-fed fan built by Simulink can be used to simulate and calculate the fan connected to the grid. More complex)
- 2020-06-19 07:40:02下载
- 积分:1
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nlms
Normalized LMS adaptive filtering algorithm.
- 2011-09-22 21:51:33下载
- 积分:1