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WebSep 23, 2024 · Moving-window filtering methods often result in a filtered signal that lags behind the original data (a phase shift).By filtering the signal twice in opposite directions filtfilt cancels-out this phase shift to produce a filtered signal which is nicely aligned with the input data.. import scipy.io.wavfile import scipy.signal import numpy as np import … WebAug 17, 2024 · To the code: import numpy as np import wave import struct import matplotlib.pyplot as plt # frequency is the number of times a wave repeats a second … theraject
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