mixxxdj/mixxx — pull request #305 by daschuer (2014-08-10 23:08:50+00:00)
Title: Bessel8 LV-Mix

This is a very nice and lightweight equalizer, introduces a crossover mix, described by Lipshitz and Vanderkooy.
Features:
* Bit perfect at unity, uses a delayed dry signal.
* introduced a constant group delay of ~2 ms by default
* Based on a Bessel8 Low pass
* roll-off -48 db/Oct
* rounded top
* minimum phase distortion, when not at unity
* only half of CPU compared to the Linkwitz-Riley EQ at worst case
* minimum CPU (a delay line) at unity