Hallo!

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hi all - may be a dumb question, but is there any way to create a "notch filter" using native pd objects that don't resonate at the center frequncy?

biquad~ should do the trick. for formulas, check

http://www.musicdsp.org/files/Audio-EQ-Cookbook.txt , theres a 'notch' helper in ggee/filters..

yes, and for a more dynamic behaviour you could simply use allpass filters 2.order (I think it is explained in Millers book, how to implement that in pd ...)

LG Georg

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-shift8

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