Overview

Originally introduced in iOS 9.3 and now in iOS 10, Dolby Audio™ is supported on millions of iOS devices, including the new iPhone 7 and iPhone 7 Plus. Dolby Digital Plus™ (also known as ec3) and Dolby Digital (ac3), two of the audio formats that enable the Dolby Audio experience, are natively supported data types in Core Audio, the foundational audio framework for all Apple platforms. Dolby Audio decoding is also available to all third-party applications. This means that these audio formats are supported throughout the operating system and in all the high-level media frameworks such as AVFoundation or Audio Toolbox. Playback of Dolby Audio in AVPlayer, for example, is as simple as passing a file with a Dolby Digital Plus soundtrack, and the system handles the rest.