The GNU ccAudio package offers a highly portable C++ class framework for developing applications which manipulate audio streams and various disk based audio file formats. At the moment ccaudio is primarly a class framework for handling .au, .wav (RIFF), and various .raw audio encoding formats under Posix and win32 systems, though it may expand to become a general purpose audio and soundcard support library. Support for controlling CD audio devices has recently been added as well as support for codecs and other generic audio processing services.