-
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
-
DWT-Watermark
discrete wavelet transform for image watermarking
- 2010-10-10 18:43:45下载
- 积分:1
-
gatbx-example
说明: 利用遗传算法计算下面函数的最大值 (The use of genetic algorithm function below the maximum)
- 2008-11-03 20:38:21下载
- 积分:1
-
3879a736
Research paper for iris recognition this will be used for students who doing iris recognition.
- 2012-05-07 20:46:10下载
- 积分:1
-
emd
matlab中的emd分解实例程序,程序简单易懂,无错误,复制可用(Examples of emd decomposition matlab program, the program is simple to understand, error-free, copy available)
- 2013-07-25 19:58:06下载
- 积分:1
-
shili01
粒子滤波的Matlab仿真算法实现
一个粒子滤波Matlab算法(Matlab simulation algorithm particle filter algorithm to achieve a particle filter Matlab)
- 2014-10-13 09:44:07下载
- 积分:1
-
data_fourclass_NIR_lu
风云3号卫星MERSI近红外波段分成4类的MATLAB程序(FY-3 satellite MERSI near-infrared bands MATLAB program divided into four categories)
- 2013-03-27 11:47:28下载
- 积分:1
-
电源
说明: clllc开关电源,pi闭环控制,参数已经设置好,具体计算有相关论文,2018a版本的matlab(Clllc switching power supply, PI closed-loop control, parameters have been set, specific calculation has related papers, 2018a version of MATLAB)
- 2020-12-08 17:47:02下载
- 积分:1
-
DV-Hop
DV_HOP
源码 大家相互学习…………………………………………………………………………(DV_HOP Source)
- 2010-05-12 12:44:07下载
- 积分:1
-
gaojieqiyizhi
通过比较奇异谱图和高阶奇异谱图得出结论:高阶奇异谱分析能够更好的二次确定嵌入维数。最后根据Takens嵌入定理进行相空间的重构。(By comparing the spectra of singular spectrum and higher-order singular conclusion: High singular spectrum analysis to better determine the embedding dimension of the secondary. Finally, according to Takens embedding theorem for phase space reconstruction.)
- 2013-07-22 21:11:19下载
- 积分:1