classi

this source code is transormers 2 code

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.))

this source code is very well

短时傅里叶变换的实例，完整可用的，简单入门级(An example of a short-time Fourier transform, complete and available, simple entry level)

matlab基础，写的非常详细，通俗易懂。(matlab basic, write very detailed, easy to understand.)

成型滤波器法仿真平坦衰落信道，功率谱密度为经典谱(Simulation of the shaping filter method flat fading channel, power spectral density for the classical spectrum)

Gabor transformer for image processing in matlab signal processing

说明：  线弹性断裂相场法，后续更新！！共同学习！！(elastic fracture phase field)

this is a pso alghoritms code

MICA软件包，可在MATLAB 5或MATLAB 6环境下运行(MICA package, MATLAB 5 or in the MATLAB 6 environment running under)