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Leopard Reference Library: Audio
Apple provides APIs, file format specifications, and other resources to provide developers with opportunities to interact with and extend various Apple applications. Core Audio's audio units let developers build signal-processing and device-control plug-ins to enhance Apple's audio applications.
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Apple Core Audio Format Specification 1.0 (HTML) (PDF)
Specifies the Apple Core Audio Format (CAF) for audio files.
 Reference 2006-03-08
Audio Unit Programming Guide (HTML) (PDF)
Explains how to use Core Audio frameworks and the Core Audio SDK to create audio units.
 Guides 2007-10-31
Core Audio Overview (HTML) (PDF)
Provides an overview of Core Audio and its programming interfaces.
Guides 2007-01-08
Creating Core Audio Format (.caf) Files (HTML)
QA1534: Describes how to use afconvert to create .caf files
 Technical Q&As 2009-01-07
HID Manager Event Data Underruns (HTML)
QA1038: Explains how to correctly handle HID Manager event queue data underruns.
 Technical Q&As 2001-06-13
Optimizing Audio Unit User Experience in Logic Studio (HTML)
TN2207: How to provide the best user experience with your audio unit in Logic Studio
 Technical Notes 2009-04-23