This is a Dual Biquad filter. Compile selectable stereo Compile selectable single/dual biquad mode Runtime selectable high-, low- and all-pass

The Slopefactor can be used to gradually change the filter from 2nd order to 4th order at runtime for the high- and low-pass modes. Slopefactor is only active in dual mode

Built by the Kata under the kind guidance of Pete Johnston 2022