Python Library

When I am computing a FFT with scipy.fftpack on a signal and plot it afterwards, I get a constant h… Read more Constant Lines Occur In Plot Of Fft With Scipy.fftpack

The following code was suggested in the very nice answer to this question here. My question about i… Read more Efficiently Compute Inverse Fourier Transform

I am generating some sound files that play tones at various frequencies with a certain number of ha… Read more Python: Frequency Analysis Of Sound Files

The following python program plots a sinusoid: import matplotlib.pyplot as plt import numpy as np … Read more Plotting Fourier Transform Of A Sinusoid In Python

Some days ago I came across this answer about the usage of the FFT In the answer there's a piec… Read more Meaning Of The Function Numpy.fft.fftfreq

I have Gaussian beam in 2D: After doing fft2 and angle I get strange results: def finite2D(x,y, … Read more Strange Phase For Gaussian Beam 2d

The following code was suggested in the very nice answer to this question here. My question about i… Read more Efficiently Compute Inverse Fourier Transform

The following code was suggested in the very nice answer to this question here. My question about i… Read more Efficiently Compute Inverse Fourier Transform