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Audio Unit Framework Reference Audio Unit Component Services Reference

Document Revision History

This table describes the changes to Audio Unit Component Services Reference.

Date

Notes

2011-10-12

Added descriptions for Generator Audio Unit Subtypes.


Added descriptions for Music Instrument Audio Unit Subtypes.


Added descriptions for new audio unit subtypes in Effect Audio Unit Subtypes.

2011-03-12

Added memory management information for the AudioUnitGetProperty function.

2010-02-24

Added descriptions for several previously undocumented data types and constants.

2009-09-09

Updated for iPhone OS 3.0.


Added an Callbacks chapter. Added and improved API descriptions throughout document.


For iPhone OS, improved description of kAudioUnitSubType_VoiceProcessingIO constant.

2008-09-09

Updated for iOS version 2.1.

2008-07-08

New document that describes a C API for initializing and using audio units.