Description • Copyright 2012 • Dimensions: 7' x 9' • Pages: 336 • Edition: 1st • Book • ISBN-10: 0-321-63684-8 • ISBN-13: 978-0-321-63684-3 Audio can affect the human brain in the most powerful and profound ways. Using Apple’s Core Audio, you can leverage all that power in your own Mac and iOS software, implementing features ranging from audio capture to real-time effects, MP3 playback to virtual instruments, web radio to VoIP support. The most sophisticated audio programming system ever created, Core Audio is not simple.
In Learning Core Audio, top Mac programming author Chris Adamson and legendary Core Audio expert Kevin Avila fully explain this challenging framework, enabling experienced Mac or iOS programmers to make the most of it. In plain language, Adamson and Avila explain what Core Audio can do, how it works, and how it builds on the natural phenomena of sound and the human language of audio. Next, using crystal-clear code examples, they guide you through recording, playback, format conversion, Audio Units, 3D audio MIDI connectivity, and overcoming unique challenges of Core Audio programming for iOS. Coverage includes: mastering Core Audio’s surprising style and conventions; recording and playback with Audio Queue; synthesizing audio; perform effects on audio streams; capturing from the mic; mixing multiple streams; managing file streams; converting formats; creating 3D positional audio; using Core MIDI on the Mac; leveraging your Cocoa and Objective-C expertise in Core Audio’s C-based environment, and much more. When you’ve mastered the “black arts” of Core Audio, you can do some serious magic. This book will transform you from an acolyte into a true Core Audio wizard. Downloads Downloads Download the for the projects in each chapter of the book.
CHANGES for 'Learning Core Audio: A Hands-On Guide to Audio Programming for Mac and iOS' sample code March 13, 2014 ------------- All projects: With the release of Xcode 5.1 and iOS 7.1, we are updating all projects to use 'Latest OS X' or 'Latest iOS' as their target SDK, rather than risk breakage as newer versions of Xcode drop older versions of the OS X and iOS SDKs. We are also modernizing the project files to use LLVM and LLDB, the supported compiler and debugger as of Xcode 5.1. Because it has been a source of confusion for some readers, we are also moving all Foundation-based examples to use Automatic Reference Counting (ARC). This means the downloadable code no longer matches the book, in that all uses of retain/release, autorelease pools, and explicit calls to dealloc been removed, and that toll-free bridging casts now take the appropriate __bridge modifier.
Free Audio Converter for Mac is able to cut audio, removing the unwanted and useless parts and save the part you need as a single audio file. Now you can use this trimming tool extract the funniest part in your audio. Now you don’t need a live recording to get the sound or music you want from video.
But we've found that ARC is now sufficiently entrenched that some people don't recognize the pre-ARC memory management techniques. There are no code changes other than those required to handle ARC or resolve new compiler warnings (most of which are just explicit casts). The code zip includes all errata fixes from the earlier updates posted in 2012 and 2013. Each project now has its own README.txt file describing the project. These files include the individual changes made as part of this update.
Individual examples: We've re-colored the piano keyboard buttons in the CH11_MIDIWifiSource.xib, since iOS 7 made them not look like buttons. CH12_MIDIToAUSampler now includes the.aupreset file and source sound used when writing the book, though we still recommend building your own preset with AU Lab. This same preset has always been included with the CH12_MIDIToAUSamplerIOS example, since the iOS version needs to find the preset within its own app bundle, unlike OS X, which searches known filesystem paths.