Mac OS X Softwares to Real-time Processing

Max/MSP is a powerful visual programming environment for creating interactive music, audio, video, and multimedia projects. It enables users to design custom software applications through a flexible patching interface, making complex real-time processing and control accessible.

Pure Data (Pd) is a widely-used graphical programming environment developed by Miller Puckette. It provides a visual interface for creating interactive computer music, multimedia works, and various forms of digital art through signal processing and event modeling.