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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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Cjibupingdu
三角级数法模拟路面不平度的MATLAB命令流(The simulation method of Road roughness)
- 2021-04-25 18:08:46下载
- 积分:1
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sifratysof_m
building a digital channel with calculating ber
- 2010-06-12 21:10:02下载
- 积分:1
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dataset
Data sets include far more ancillary information than simple tables of numbers and the DataSet Object (DSO) was designed as a generic container that can hold all of this information. The standard DataSet object is similar to a Matlab structure but it is intended to standardize how data is organized and maintained. It was originally designed in 2000 by a consortium of chemical and engineering industry experts to contain the kinds of data that they worked with in real applications. It has been updated numerous times since then to add relevant functionality needed for multivariate analysis of physical science and engineering data.
- 2013-04-08 03:56:35下载
- 积分:1
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line--path-of-vessel-follow-
船舶路径跟纵,只限跟踪,contro微控制器,vlm为船模型(line path following)
- 2021-03-08 09:49:29下载
- 积分:1
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SEIR
说明: 传染病模型是指传染病的基本数学模型,研究传染病的传播速度、空间范围、传播途径、动力学机理等问题,以指导对传染病的有效的预防和控制。常见的传染病模型按照传染病类型分为SI、SIR、SIRS、SEIR模型等。由于2019年末出现的新冠肺炎有一定的潜伏期,与病人接触过的健康人并不马上患病,而是称为病原体的携带者,归为E类。(infectious disease model simulation)
- 2020-05-29 10:08:56下载
- 积分:1
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fadianji
发电机仿真模型,自己编写的,已经编译过很好用。(Generator simulation model, I have written, has compiled a very good use.)
- 2011-10-06 23:06:29下载
- 积分:1
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FOC1
异步电动机数量控制完整仿真模型,可以根据实际情况写该参数,达到研究者所需要的情形(The number of complete induction motor control simulation model, the parameter can be written according to the actual situation, the researchers needed to achieve the situation)
- 2013-12-17 13:02:42下载
- 积分:1
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PIANO
PIANO CREATED
simple piano in C programming language
- 2010-11-16 13:59:12下载
- 积分:1
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MotionCompensationAndObjectDividion
对视频系列进行运动估计及对其中的运动目标进行分割获得运动对象。(Series of video motion estimation and target one of the sport was moving object segmentation.)
- 2009-02-28 18:41:36下载
- 积分:1