BR808 is a originally demoscene-originated software synthesizer, which became a bit too big for 64k intros.
The most files (most all BR808 core source code files) are licensed under the LGPLv3 license and some (most all by BR808 used helper libraries) are licensed under the Zlib license.
It is possible because it uses neither the original VST SDK nor a direct pascal port thereof. Instead, a separate independent-implemented VST header is used, based on these information sources:
- http://sourceforge.net/projects/delphiasiovst/
- http://www.kvraudio.com/forum/viewtopic.php?p=1905347
- http://www.kvraudio.com/forum/printview.php?t=143587&start=0
- http://www.asseca.org/vst-24-specs/index.html
Borland Delphi 7 is needed for compilation, and VSTi\VSTCore\UnitVSTiGUI.pas should be installed as IDE visual component.