Leopard Reference Library
This page lists new and recently changed documents, including Articles, Guides, Reference, Release Notes, Sample Code, Technical Notes, and Technical Q&As. Most documents have a revision history, which details additions and changes to that document since the previous version. Look for "Revision History" at the bottom of the document or in the document's table of contents.

Items are listed in reverse chronological order by publication date. To see the list sorted by the type of revision, click Sort by Revision Type. Items published for the first time (First Version) will be at the top of the list, followed by items with new or changed content (Content Update), followed by items with small fixes, such as typos and format errors, but no significant content changes (Minor Change).

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Document Revision Descriptions
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Topic
2009-01-07 Creating Core Audio Format (.caf) Files (HTML)
First Version
 First Version Technical Q&As Apple Applications
2009-04-23 Optimizing Audio Unit User Experience in Logic Studio (HTML)
First Version
 First Version Technical Notes Apple Applications
2009-02-20 Audio Queue - Looping Compressed Audio (HTML)
First Version
 First Version Technical Q&As Carbon
2009-02-20 Audio Queue - Looping Compressed Audio (HTML)
First Version
 First Version Technical Q&As Cocoa
2008-10-15 NSSound Class Reference (HTML) (PDF)
Updated the list of supported sound formats.
 Minor Change Reference Cocoa
2009-01-27 Audio Export - Encoding AAC Audio For MPEG-4 Export (HTML)
Editorial
 Minor Change Technical Notes Core Audio
2008-10-15 Audio File Stream Services Reference (HTML) (PDF)
Minor Change Reference Core Audio
2009-02-20 Audio Queue - Looping Compressed Audio (HTML)
First Version
 First Version Technical Q&As Core Audio
2008-09-08 Audio Unit Validation Using the auval Tool (HTML)
Minor Change Technical Notes Core Audio
2009-04-12 AudioChannelLayout - What's the Audio Channel Order when the Layout has a Channel Bitmap? (HTML)
First Version
 First Version Technical Q&As Core Audio
2008-11-19 Core Audio Data Types Reference (HTML) (PDF)
Clarified distinction between availability of audio data format identifiers and presence of audio codecs.
 Content Update Reference Core Audio
2009-01-07 Creating Core Audio Format (.caf) Files (HTML)
First Version
 First Version Technical Q&As Core Audio
2008-09-09 Extended Audio File Services Reference (HTML) (PDF)
New document that describes an interface for reading and writing audio files with automatic format conversion.
 First Version Reference Core Audio
2009-04-23 Optimizing Audio Unit User Experience in Logic Studio (HTML)
First Version
 First Version Technical Notes Core Audio
2008-09-29 Using the ExtAudioFileSeek and ExtAudioFileTell Functions (HTML)
First Version
 First Version Technical Q&As Core Audio
2009-03-04 Audio Device Driver Programming Guide (HTML) (PDF)
Corrected errors in Listing 3-12 and 3-13.
 Minor Change Guides Hardware & Drivers
2008-10-13 Generating a Non-Maskable Interrupt (NMI) (HTML) (日本語 HTML)
Modernized and made editorial revisions. Added details related to Intel-based Macs.
 Content Update Technical Q&As Hardware & Drivers
2009-03-04 I/O Kit Framework Reference (HTML)
Fixed various minor typographical error.
 Minor Change Reference Hardware & Drivers
2008-09-18 IODeviceTree and the I/O Registry (HTML) (日本語 HTML)
Modernized and made minor editorial changes.
 Minor Change Technical Q&As Hardware & Drivers
2009-01-06 Kernel Framework Reference (HTML)
Reprocessed using updated tools.
 Minor Change Reference Hardware & Drivers
2008-09-24 Retain Counts of io_object_t Objects in IOKit.framework (HTML) (日本語 HTML)
Minor editorial changes.
 Minor Change Technical Q&As Hardware & Drivers
2008-09-16 Disabling Processor Cores on a Multi-Core System (HTML) (日本語 HTML)
Added CHUD Processor preference pane. Removed obsolete content. Made editorial changes.
 Content Update Technical Q&As Performance
2009-01-27 Audio Export - Encoding AAC Audio For MPEG-4 Export (HTML)
Editorial
 Minor Change Technical Notes QuickTime
2009-01-07 Creating Core Audio Format (.caf) Files (HTML)
First Version
 First Version Technical Q&As QuickTime
2008-11-05 Playback of QuickTime movie audio through a multi-channel speaker system (HTML)
First Version
 First Version Technical Q&As QuickTime
2009-01-29 QuickTime Audio - Easy Frequency Level Metering with MovieAudio APIs (HTML)
Editorial
 Minor Change Technical Q&As QuickTime
2008-11-05 QuickTime Audio - Retrieving the correct audio format bit depth value (HTML)
editorial
 Minor Change Technical Q&As QuickTime