G8 is the perfect digital noise gate that all the analogue ones were trying to model…
The traditional way to build a multi-band compressor is to split the signal into the required number of bands using cross-over filters, then run each band- through a separate compressor before mixing them back together again.
L3V3LL3R-X3 three band-limited driving a pair of dynamic shelving filters plus a gain stage.
Dynamic EQ is a powerful process, capable of solving many tricky mixing or mastering issues.
FL4TT3RY 2 – Free VST is a gentle, squashy compressor intended for use on buses, though it also works well on channels. It has a very soft knee, with a ratio that gradually increases to hard limiting, and a choice between RMS based level detection (with a window size that depends on the attack time) or a brand new peak sensing algorithm.