Description:

Stereo and mono LV2 plugins, four-band parametric equalizers.
Each section has an active/bypass switch, frequency, bandwidth and
gain controls. There is also a global bypass switch and gain control.

The 2nd order resonant filters are implemented using a Mitra-Regalia
style lattice filter, which has the nice property of being stable
even while parameters are being changed.

All switches and controls are internally smoothed, so they can be
used 'live' without any clicks or zipper noises. This should make
this plugin a good candidate for use in systems that allow automation
of plugin control ports, such as Ardour, or for stage use.

The GUI provides knobs and toggle buttons for tweaking filter
parameters. It also provides frequency response widget with
differently colored curve for each section and separate curve for
total equalization effect.