LSP Dynamikprozessor plugin series is a free compressor and limiter VST, LV2, Ladspa plugin developed by Linux Studio Plugins Project. Compatible OS(s): Linux.
This plugin performs dynamic processing of mono/stereo input signal. Flexible sidechain-control configuration is provided.
There are possible different variants of dynamic processor to build: compressor, limiter, gate, expander, some kind of transient designer and many others due to possibility of flexible dynamic curve configuration.
Also dynamic range can be split into sub-ranges that may have their individual attack and release timings.
{See video at top of page}
http://lsp-plug.in/