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vioce-signal-processing
录制自己的一段语音,时间控制在15秒到30秒左右;利用wavread函数对自己的语音进行采样,记住采样频率。
(1)画出原始语音信号的时域波形,而后以1秒为间隔,求出每秒数据的功率谱。
(2)根据语音信号特点,分别设计FIR及IIR滤波器,分别画出滤波器幅频和相频特性曲线。用设计的滤波器对信号滤波,画出滤波后时域波形。用sound函数回放语音信号。
(3)求出特征频段语音信号随时间变化的曲线(每间隔0.05秒求一次功率谱)。
(Record your own voice for some time (15 seconds to 30 seconds) use wavread function of the voice samples, remember the sampling frequency. (1) Draw the original speech signal in time domain waveform, and then to 1 second intervals, the data obtained power spectrum per second. (2) According to the voice signal characteristics, FIR and IIR filters were designed, namely to draw the amplitude and phase frequency characteristic curve. With the design of the filters on the signal filtering, to draw the filtered time-domain waveform. Playback with sound function of the speech signal. (3) Find the characteristic band speech signal curve over time (0.05 seconds intervals seeking a power spectrum.))
- 2011-06-01 22:29:27下载
- 积分:1
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weina
基于MATLAB经典维纳滤波算法的仿真和矩阵构建(Classic Wiener filtering algorithm based on MATLAB simulation and matrix building)
- 2011-08-17 17:00:34下载
- 积分:1
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bpsk_ofdm_EN
Modulation test for OFDM : This is a set of five (5) codes about COFDM (Coded Orthogonal Frequency Division Multiplexing) and coding schemes such as Convolutional, BCH, Reed Solomon (RS) and Low Density Parity Check (LDPC).
The study uses an OFDM signal over an AWGN Channel with white Gaussian noise model, and calculate the Bit Error Rate wich is plotted.
- 2013-05-06 20:48:03下载
- 积分:1
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sourcefunction
实现得到一个简单函数的最优解 利于在其基础上进入深入 学习(To get a simple function to achieve the optimal solution to facilitate their access to in-depth study on the basis of)
- 2009-12-29 09:40:38下载
- 积分:1
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pcatest
是一个应用matlab编写的基于pca读取人脸的人脸识别和人脸检测软件,是一个非常不错的人脸检测识别软件。希望对大家有用(Matlab is an application prepared by the pca read on the face and face recognition face detection software, is a very good face detection recognition software. We hope to useful)
- 2007-05-12 16:56:25下载
- 积分:1
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0-annc_slotine
book number one in control system (automatique)
- 2014-08-23 17:59:56下载
- 积分:1
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pv_3xiang_pqcontrol
三相电逆变器及并网发电方法的控制模型仿真(Three-phase power inverter and the grid method of the control model simulation)
- 2011-09-25 23:43:42下载
- 积分:1
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OFDM
正交频分复用(OFDM)通信系统的MATLAB源程序(OFDM communication system MATLAB)
- 2013-09-27 09:01:06下载
- 积分:1
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aa
说明: 飞行控制器matlab仿真,网上没有哦()
- 2008-05-05 09:57:26下载
- 积分:1
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zuixiaoshengchengshu_biquanfa
该算法的功能是利用避圈法来求有权图的最小生成树
在函数的编写过程中用到了自己编写的 wode_setdiff(A,b) 函数,具体详参该函数
该算法的实用性相当强,可以实用于任何的赋权有向图最小生成树的求解!!!经过多次不同的运行,
程序的结果都正确无误!(the function is...)
- 2010-03-07 19:53:27下载
- 积分:1