Based ON MS speach API，实时显示波形，FFT变换，IFFT变换波形，支持从文件播放，基音分析，滤波，支持远程控制。欢迎大家改进！-Based ON MS ZAJAC API, real-time waveform, FFT, Transform IFFT waveform support from the document shows, pitch analysis, filtering, support remote control. We welcome the imp

采用MATLAB分析WAV文件。 步骤一：选择一个WAV文件作为分析的对象 。（ding.wav） 步骤三：进行 FFT变换并画频域图形 。 步骤四：进行该声波主要频谱的分析。 步骤五：根据该声音的频谱，反演时域图形 。（有失真） 步骤六：进行付立叶逆变换IFFT并画频域图形 。,WAV file analysis using MATLAB. Step One: Select a WAV file as the target of analysis. (Ding.wav) Step

此文档提供了FFT和IFFT两个函数。main函数中是一个测试函数的小例子。该程序自己编写，并验证通过！-Here we provide two basic functions. FFT and IFFT, and a small examples to show to result. I have tested the functions and successed.

I ve made an example on how to perform FFT operation using FFTW in OpenCV. It simply loads an image, compute FFT & IFFT, then display the final result. The resulted image has no difference with the original, as it should.