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Technical Notes
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.
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The Sonogram View Demo Audio Unit (HTML)
TN2200: Describes the advanced audio unit features that the associated sample project demonstrates.
 Core Audio 2007-11-07
Using AudioDeviceRead in Mac OS 10.4 (HTML)
TN2113: How to use AudioBufferLists with AudioDeviceRead in Tiger and beyond.
 Core Audio, Hardware & Drivers 2006-11-29
Playing a sound file using the Default Output Audio Unit (HTML)
TN2097: Playing an Audio File using the Default Output Audio Unit
 Core Audio 2006-11-15
Device input using the HAL Output Audio Unit (HTML)
TN2091: How to get input from an audio device by using the HAL's Output Audio Unit.
 Core Audio 2006-07-25
Handling Audio Unit Events (HTML)
TN2104: This technote explains how to handle AudioUnit Events
 Carbon, Cocoa, Core Audio 2005-04-29
The System Sound APIs for Mac OS X 10.2, 10.3 and later (HTML)
TN2102: Discusses the System Sound APIs for correctly playing Alerts and User Interface Sound Effects
 Carbon, Core Audio 2004-07-13
Using the 3DMixer Audio Unit (HTML)
TN2112: Discusses how to use Core Audio's 3DMixer version 2.0
 Carbon, Core Audio, Games 2004-06-14
SndPlayDoubleBuffer and Carbon (HTML) (日本語 HTML)
TN1198: Discusses the removal SndPlayDoubleBuffer and other Sound Manager APIs from Carbon and how to replace them.
 Carbon, Games, QuickTime 2002-06-12