Leopard Reference Library
Audio Frameworks lists reference documents for the frameworks located in the System/Library/Frameworks folder that are most relevant to audio developers. Click an HTML or PDF link below to find reference material for a particular framework.
Document Descriptions
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I/O Kit Framework Reference (HTML)
Describes the I/O Kit classes that support non-kernel access to I/O Kit objects through the device-interface mechanism.
 2009-03-04
Kernel Framework Reference (HTML)
Describes the APIs and classes (including I/O Kit families) that support kernel-resident device drivers.
 2009-01-06
Core MIDI Framework Reference (HTML)
Describes a C API for Mac OS X MIDI system services.
 2008-04-08
Core MIDI Server Framework Reference (HTML)
Describes the Mac OS X MIDI driver interface.
 2008-04-08
FireWire Audio User Library Framework Reference (HTML)
Describes the API that supports user-space access to FireWire audio devices and enables the creation of virtual FireWire audio devices.
 2008-04-08
Audio Toolbox Framework Reference (HTML)
Describes the Core Audio API to access audio files and convert between linear PCM and compressed audio formats.
 2006-11-07
Core Audio Framework Reference (HTML)
Describes a C API that interfaces with audio hardware and includes data types used throughout Core Audio.
 2006-11-07