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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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elevation-error-UCA
均匀圆阵MUSIC算法,不同信噪比下对信号俯仰角估计性能,用均方根误差表示;采用谱峰搜索寻找最大值对应坐标;(UCA MUSIC to estimate elevation angle vernus different SNRs,describe with RMSE search the spectral peak and fing the maximum )
- 2012-08-14 11:15:20下载
- 积分:1
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chaos
几个典型的混沌时间序列的生成程序,给出了各个混沌系统的吸引子图形(Several time series generated typical chaotic program)
- 2010-06-01 10:12:27下载
- 积分:1
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matlab-optimization
对Matlab中的优化问题进行了详细的分类阐述(introduce the optimization clesrly in matlab)
- 2009-04-20 14:23:06下载
- 积分:1
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code2
3D shape reconstruction matlab code. It used shape from defocus technique with divergence. You can reconstruct 3D shape with only two different depth images.
- 2021-04-14 09:28:56下载
- 积分:1
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calcul_couple
Calcu du couple pour la commande vectorielle
- 2010-01-01 03:24:11下载
- 积分:1
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kalmanfiltering
说明: Kalman 滤波实际应用,对于初学者来说是一份非常好的学习参考资料,呵呵!(The practical application of Kalman filtering, for beginners is a very good learning references, Ha ha!)
- 2011-04-01 21:24:31下载
- 积分:1
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derivatives
金融工程嗯, 从matlab论坛上下载的,我觉得很有用,所以传上来分享(Financial Engineering derivatives from famous University and is really useful in derivatives. I love it very much and I think is really helpful to your guys)
- 2012-06-01 15:16:27下载
- 积分:1
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jieoulv
运用matlab进行遗传算法编程,旨在求解汽车发动机悬置系统的个自由度解耦率(The use of genetic algorithm matlab program to solve the vehicle engine mounting system of degrees of freedom decoupling rate)
- 2011-09-01 10:12:58下载
- 积分:1
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threephase-pll
Simulation of three phase harmonics Phase Locked Loop (PLL)
- 2013-01-31 22:38:48下载
- 积分:1