[SciPy-User] scipy.signal.remez producing odd filter effects / not producing desired effect

Matti Viljamaa mviljamaa at kapsi.fi
Mon Jul 11 10:23:52 EDT 2016


What about the following:

is this (the almost -15dB cut in the transition from <2000Hz to >2000Hz) a “feature" of the filter?



plotted with:

bands = np.array([0, cutoff - 0.5*transition_width,
                  cutoff + 0.5*transition_width, cutoff + 0.5*transition_width + 2400.0, cutoff + 0.5*transition_width + 2500.0,fs/2.0]) / fs
desired = [0.5, 1, 0.3]

-Matti
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