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Leopard Sample Code: Audio
Core Audio and Core MIDI are the Mac OS X audio and MIDI subsystems. Core Audio provides a hardware abstraction layer, an effects processing framework, data format conversion routines, and other services. Core MIDI provides a hardware abstraction layer and MIDI routing.
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CAPlayThrough (HTML) (DMG) (ZIP)
Illustrates how to use the HAL's Audio Output Unit (AUHAL) for device input and the Default Output Audio Unit for output.
2007-08-22
AudioQueueTools (HTML) (DMG) (ZIP)
Demonstrates usage of the AudioQueue API
 2007-06-08
RecordAudioToFile (HTML) (DMG) (ZIP)
Demonstrates recording audio to an AAC file using Core Audio
 2007-02-27
TremoloUnit (HTML) (DMG) (ZIP)
Audio unit sample demonstrating how to build an effect unit with a generic view.
 2006-10-26
SimplePlayThru (HTML) (DMG) (ZIP)
Use the HAL's Audio Output Unit (AUHAL) for device input and output on a single device (play-thru)
 2006-10-25
AudioQueueTest (HTML) (DMG) (ZIP)
Demonstrates AudioQueue, an audio playback API introduced in Mac OS X 10.5
 2006-08-01
AudioDeviceNotify (HTML) (DMG) (ZIP)
Demonstrates how to enumerate audio devices attached to the system and how to handle device notifications
 2006-04-21
QTAudioExtractionPanel (HTML) (DMG) (ZIP)
Enhances the QTKitPlayer to add an Audio Channel Mapping and Extraction panel
 2005-06-27
FilterDemo (HTML) (DMG) (ZIP)
Demonstrates how to write a filter AudioUnit with a custom Cocoa User Interface.
 2005-06-01