Frequency response shows a highpass filter.
Notice the same cutoff frequency as simple lowpass.
``Music 171: Introduction to Delay and Filters''
by Tamara Smyth,
Computing Science, Simon Fraser University.
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Copyright © 2019-11-21 by Tamara Smyth.
Please email errata, comments, and suggestions to Tamara Smyth<trsmyth@ucsd.edu>