Sound Object Library

The Sound Object Library is a C++ object-oriented programming library for music and audio development. It is composed of 100+ classes for signal processing, audio, MIDI, and file I/O. The library is available for Linux, Windows, Mac [OS X], IRIX, and other Unix-like systems.
The library development is now a cooperative project hosted by SourceForge. New versions are released twice-yearly and development versions are available via Concurrent [Versions System].
The Library also provides bindings for Python, Java and Common Lisp.