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Showing posts with the label Fft
Constant Lines Occur In Plot Of Fft With Scipy.fftpack

Constant Lines Occur In Plot Of Fft With Scipy.fftpack

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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
Sympy Simplify Eliminate Imaginary Numbers

Sympy Simplify Eliminate Imaginary Numbers

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I'm trying to get the cosine similarity between convolved vectors. Because I'm using fast f… Read more Sympy Simplify Eliminate Imaginary Numbers
Tutorial, Tricks And Banana Skins For Discrete Fourier Transformation (ft) In Python

Tutorial, Tricks And Banana Skins For Discrete Fourier Transformation (ft) In Python

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I am interested in usefull tricks and and banana skins when doing Fourier transformation in python.… Read more Tutorial, Tricks And Banana Skins For Discrete Fourier Transformation (ft) In Python
Meaning Of The Function Numpy.fft.fftfreq

Meaning Of The Function Numpy.fft.fftfreq

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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
Strange Phase For Gaussian Beam 2d

Strange Phase For Gaussian Beam 2d

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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
Getting The Frequencies Associated With Stft In Librosa

Getting The Frequencies Associated With Stft In Librosa

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When using librosa.stft() to calculate a spectrogram, how does one get back the associated frequenc… Read more Getting The Frequencies Associated With Stft In Librosa