GNU ccAudio2 is a stand-alone portable C++ class framework for manipulating audio data. It has existed for some time as GNU GPL licensed package and has most recently been designated a GNU package. It is commonly used in GNU Bayonne.
GNU ccScript is a C++ class framework for creating a virtual machine execution system for use with and as a scripting/assembler language for state-transition driven realtime systems. The most common example of this is as the core of the scripting engine found in GNU Bayonne.