What's VST?
VST is Virtual Studio Technology, Steinberg's specification for plug-in components for their Cubase digital audio workstation software. In short, a VST plugin can receive, manipulate, and send chunks of digital audio data in conjunction with a bunch of other components; this allows users to expand their capabilities a piece at a time, much like buying new effects units or synthesizers at your local music gear dealer, without having to throw away all your existing musical equipment. The VST format is available on both Windows and Macintosh platforms; besides VST, there are platform-specific standards for this kind of software: DXi on Windows, and AU on Mac OS X, to name two.