Post #4297101
2026-04-21 21:32 UTC
@eesn@mas.to Yes, apparently it is true. Add zeros between each sample -> low pass -> do whatever processing -> low pass (to remove stuff above nyquist) -> decimate (throw away every other sample)
Replies (1)
-
@kst@post.lurk.org 2026-05-24 17:45
@williamfields@post.lurk.org @eesn@mas.to a lot of the fourier math boils down to the simple property that sampling in one domain causes periodization (aliasing) in the other domain, and vice versa: https://mu.krj.st/dft/#big-picture