The Constructor software bundle is a powerful modular audio-engine, packed into a VST Plug-in and a separate Editor-application which is able to remote-control the plug-in's audio-process in any aspect.
The editor, a DDE-Server somewhat similar to a modular synthesizer, allows to setup basic audio-algorithms like filters, modulators, control-generators a.s.o., in any number, combination and with easy to use parameter settings.
The plug-in's audio-stream is passed in real-time thru this "construction", reproducing the resulting audio-algorithm exactly as it is seen on the editor. This allows to create new and unique effects "on the fly", embedded in any VST-compatible audio environment.
Also already created effects, e.g. taken from the increasing Presets bank, can be re-elaborated, build or put together instantly from inside the mix of a music-piece.
To provide fast and easy handling, constructions can be setup not only in the fully open editor-style, but also with a user-defined reduced and handy interface, just to use them like any other audio-effect software.