-
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
-
Bezier
用matlab实现Bezier曲线,一个很使用的matlab程序源码,经过调试成功的(Matlab achieve Bezier curves with, a very used matlab program source, after successful commissioning)
- 2010-08-03 10:05:22下载
- 积分:1
-
KNN
这是一个KNN聚类程序,大家共同学习,希望对大家有帮助!(This is a KNN clustering procedure, we learn together, we hope there is help!)
- 2010-08-03 16:08:53下载
- 积分:1
-
different-fractional-order-chaotic
一种异结构分数阶混沌系统投影同步的新方法_黄丽莲(A heterologous structural projective synchronization of fractional order chaotic systems new method _ Huang Lilian)
- 2013-10-23 10:16:33下载
- 积分:1
-
LK_improved
Traditional optical flow technique that developed by Lucas and Kanade was improved with the optimized variable setting. It is quite simple and also helpful.
- 2013-10-28 12:44:58下载
- 积分:1
-
LDLTandCholesky
A=(aij)20×20的LDLT分解与Cholesky分解(A = (aij) 20 × 20 in the LDLT decomposition and Cholesky decomposition)
- 2010-12-04 10:53:20下载
- 积分:1
-
swapMutation
Swap mutation exchanges the positions of two randomly chosen genes in a permutation
- 2009-07-10 11:40:21下载
- 积分:1
-
LMPsignal
线性调频脉冲压缩雷达仿真程序.仿真程序模拟产生理想点目标的回波,并采用频域相关方法(以便利用FFT)实现脉冲压缩。(线性调频脉冲压缩雷达仿真程序)
- 2010-12-05 16:05:43下载
- 积分:1
-
Short-road
遗传算法解决最短路径。在matlab中实现计算和结果输出。(The genetic algorithm to solve the shortest path. Calculated and results output in matlab.)
- 2013-04-13 19:46:16下载
- 积分:1
-
TestShellActivity
Test Shell Activity extends Activity implements Layout Test Controller.
- 2014-02-25 12:02:30下载
- 积分:1