Description:

The Synthesis ToolKit in C++ (STK) is a set of open source audio signal
processing and algorithmic synthesis classes written in C++. STK was
designed to facilitate rapid development of music synthesis and audio
processing software, with an emphasis on cross-platform functionality,
realtime control, ease of use, and educational example code. The Synthesis
ToolKit is extremely portable (it's mostly platform-independent C and C++
code), and it's completely user-extensible (all source included, no unusual
libraries, and no hidden drivers). We like to think that this increases the
chances that our programs will still work in another 5-10 years. In fact,
the ToolKit has been working continuously for nearly 8 years now. STK
currently runs with "realtime" support (audio and MIDI) on SGI (Irix),
Linux, Macintosh OS X, and Windows computer platforms. Generic,
non-realtime support has been tested under NeXTStep, Sun, and other
platforms and should work with any standard C++ compiler.