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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。
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- 2009-01-13 16:23:47下载
- 积分:1
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multipath
有关于海洋环境噪声以及信道多径传播的程序(About the program of the marine environment and channel noise multipath propagation)
- 2021-03-20 16:49:18下载
- 积分:1
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wmlgf
此文件是弹性地基梁计算程序。可通过输入梁与荷载的初始参数,计算弹性地基梁的内力、位移、反力分布。(This paper Xi River rudder is the Laos regulatory ?у Ban Tian the bake ? Cong $ Cheng Fu example, Shi. Efficiency Chi Adoption Input percent and Ya drilling crazy poured Fei Fan Wai-Pu example, parameters to help Rencong calculation Laos regulatory ?he у Pannuo bake ? the Fei Fanqiang E ?certificate Xian hand crepe Meeting ?Huoshe Mechanics distribution Kou ?
- 2021-03-02 00:49:34下载
- 积分:1
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saloha
时隙ALOHA协议程序:实际产生的业务量,吞吐量,平均延迟 (Slotted ALOHA protocol procedures: the actual traffic throughput, average delay)
- 2012-10-10 15:47:38下载
- 积分:1
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textInjecttest
A mex file to send text to any other application
- 2011-01-16 01:50:33下载
- 积分:1
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Optic_Flow
一种很好用的光流法,对于图像处理学习的初学者是很不错的参考程序。(A good use of optical flow for image processing is very good for beginners to learn the reference procedure.)
- 2010-06-01 17:02:40下载
- 积分:1
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(An-Engineers-Guide-to-MATLAB)
matlab原理与工程应用 经典书籍 不要错过(Do not miss matlab principle and engineering applications of classic books)
- 2013-01-12 21:18:09下载
- 积分:1
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simple_sinc_function_map
绘制简化sinc函数方向图,以及和差天线方向图,论文中的天线方向图模型有详细的函数形式(Map simplified sinc function direction, and the poor and the antenna pattern, the antenna direction graph model of the paper has a detailed functional form)
- 2015-05-25 17:14:41下载
- 积分:1
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xiandaileida
介绍雷达的理论基础、脉冲压缩技术、信号检测技术、频率和极化捷变技术、现代天线技术(Introduce the theoretical basis for radar pulse compression techniques, signal detection, frequency and polarization-agile technology, modern antenna technology)
- 2009-04-01 09:58:19下载
- 积分:1
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number_system
十进制转换为二进制,在Matlab中实现,利用矩阵来进行实现(Decimal to binary, implemented in Matlab using the matrix to be achieved)
- 2010-11-14 00:56:00下载
- 积分:1