Wave Arts MultiDynamics 7 (Digital product)

A powerful multi-band dynamics processor useful for mastering, track processing, sound design, and noise reduction. MultiDynamics provides up to 6 bands with independent compression or expansion/gating per band. Multiband dynamics processing combines the techniques of equalization and dynamics processing, but is more powerful than a static equalizer or a single band dynamics processor. Now supports extensive sidechain capability. Each dynamics band can be driven from the input signal or an external sidechain input. You can also specify wide-band or band-filtered signal, or select either the input or external signal filtered by a separate sidechain EQ. Hence you can drive one frequency band based on the signal from another frequency band.