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内容説明 The only guide to Apple’s powerful audio programming framework， Core Audio - by two renowned Mac audio experts - Introduces all the essential concepts of Mac and iPhone audio programming - Task-based coverage explains everything from playing files to digital effects， with detailed sample code - Covers sophisticated techniques， including the creation of surround sound output for desktop and iPhone applications - Co-author Avila is one of the formeost authorities on Core Audio Summary Authored by two of the world’s leading Apple audio programmers， this will be the definitive reference to Core Audio for every Macintosh and iPhone developer. It fills an enormous gap in the marketplace， providing the practical and accessible learning materials that Core Audio developers have never had before. The book begins with a complete introduction to generic digital audio concepts， written to be accessible to the vast majority of developers who’ve never programmed audio before. It takes high-level look at how Core Audio implements these concepts， present common ?use cases? for Core Audio， and discuss crucial trade-offs between audio quality， performance， and file size. Next， Lee and Avila drill down to each specific task Core Audio developers are likely to perform - tasks such as recording and playing audio， controlling audio files， transcoding between formats， and adding digital effects. They thoroughly explain the relevant API， demonstrating each concept with usable sample code - and offering the insight and context needed to truly adapt that code to fit realworld projects. Building on the basics， the authors introduce several advanced audio development techniques， including programming 3D audio with OpenAL to deliver surround sound output in both desktop and iPhone applications. They also cover Core MIDI， the subset of the Core Audio frameworks that can be used to work with MIDI devices.