Blackman Window: is a cone formed using the first three terms of the sum of the cosines. It has been designed to have almost the lowest possible leakage. This is close to optimal, only slightly worse than the Kaiser window.
Parameters (numpy.blackman): M: int Number of points in the output window. If zero or less, an empty array is returned. Returns: out: array
Window with maximum value normalized to one (value one appears only if the number of samples is odd).
[-1.38777878e-17 3.26064346e-02 1.59903635e-01 4.14397981e-01 7.36045180e-01 9.67046769e-01 9.67046769e-01 7.36045180e-01 4.14397981e -01 1.59903635e-01 3.26064346e-02 -1.38777878e-17]
Plotting the window and its frequency response (requires SciPy and matplotlib):
Code: for window:
Code: for frequency:
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