This is a VST effect that emulates EAX (Environmental Audio Extensions) reverb. EAX was a standard used in late 90s to early 2000s Creative Labs sound cards to add audio effects to games. Some modern sound cards such as Realtek HD Audio can emulate EAX. This VST is based on the openal-soft EAX Reverb Implementation which was ported to c++.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.Have fun!