Leopard Technical Q&As
This page lists new and recently changed Technical Q&As.

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).

New and updated Technical Q&As are announced in the bi-weekly Apple Developer Connection News, available as an option to ADC members. See the Membership Overview page for details on joining.
Document Revision Descriptions
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2009-02-20 Audio Queue - Looping Compressed Audio (HTML)
First Version
 First Version Carbon, Cocoa, Core Audio
2009-04-12 AudioChannelLayout - What's the Audio Channel Order when the Layout has a Channel Bitmap? (HTML)
First Version
 First Version Core Audio
2009-01-07 Creating Core Audio Format (.caf) Files (HTML)
First Version
 First Version Apple Applications, Core Audio, QuickTime
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 Performance
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 Hardware & Drivers
2008-09-18 IODeviceTree and the I/O Registry (HTML) (日本語 HTML)
Modernized and made minor editorial changes.
 Minor Change Hardware & Drivers
2008-11-05 Playback of QuickTime movie audio through a multi-channel speaker system (HTML)
First Version
 First Version QuickTime
2009-01-29 QuickTime Audio - Easy Frequency Level Metering with MovieAudio APIs (HTML)
Editorial
 Minor Change QuickTime
2008-11-05 QuickTime Audio - Retrieving the correct audio format bit depth value (HTML)
editorial
 Minor Change QuickTime
2008-09-24 Retain Counts of io_object_t Objects in IOKit.framework (HTML) (日本語 HTML)
Minor editorial changes.
 Minor Change Hardware & Drivers
2008-09-29 Using the ExtAudioFileSeek and ExtAudioFileTell Functions (HTML)
First Version
 First Version Core Audio