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Leopard Guides
System-level Mac OS X services streamline the development process for audio developers, and for application developers who incorporate audio into their products. Core Audio provides native multichannel audio in a manner scalable for future high-resolution formats. The Audio Unit API provides a plug-in architecture for both DSP and for MIDI-based virtual instruments. MIDI services provide multiport MIDI capability.
An introduction to audio development in Mac OS X.   Essential information for developers working with audio in Mac OS X.   C and Objective-C API references organized by framework.
Audio Topics
View the complete Audio Guides List.
Apple Applications
Audio-oriented Apple applications that other products can interact with and extend. 		 
Carbon
C APIs for creating, processing, and playing sound content. 		 
Cocoa
Object-oriented APIs for creating, processing, and playing sound content.
Core Audio
Frameworks and tools for audio and MIDI data manipulation. 		 
Games
APIs for creating, processing, and playing sound in Mac OS X gaming software. 		 
Hardware & Drivers
Resources for developing audio devices and software to access them.
Performance
Facilities for improving performance when working with sound. 		 
QuickTime
A multiplatform technology for creating, processing, and playing sound content.