[Mne_analysis] Why does MNE resample method does not sample the data point to point?
larson.eric.d at gmail.com
Thu Jul 23 13:40:57 EDT 2020
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> > AFAIK, scipy.signal.resample doesn't include an anti-aliasing filter,
> but both scipy.signal.resample_poly as well as scipy.signal.decimate apply
> such a low-pass filter before resampling. That's also what MNE does.
scipy.signal.resample does frequency-domain resampling, so implicitly uses
a brick-wall filter at Nyquist when downsampling (unless you specify
something for the `window` argument, which gets applied in the frequency
domain in addition to the effective brick-wall filter).
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