claytonotey / paukn

The pitched audio knife - VST effect with various midi note controlled filters (lowpass, hipass, comb, decimator, granulator, digital waveguide)
11 stars 1 forks source link

groupdelay #1

Closed wothke closed 4 years ago

wothke commented 4 years ago

Hi, I am trying to understand the reasoning behind the groupdelay impl you have in filter.cpp, e.g. why is it using df=5 and not just df=1. Could you maybe point me to some paper that explains the approach?