ObjectAL for iPhone is designed to be a simpler, more intuitive interface to OpenAL and AVAudioPlayer. There are four main parts to ObjectAL for iPhone:

* ObjectAL gives you full access to the OpenAL system without the hassle of the C API. All OpenAL operations can be performed using first class objects and properties, without needing to muddle around with arrays of data, maintain IDs, or pass around pointers to basic types.

* BackgroundAudio provides a simpler interface to AVAudioPlayer, allowing you to play, stop, pause, and mute background music tracks. As well, it provides an easy way to configure how AVAudioPlayer will handle iPod-style music playing and the silent switch.

* IphoneAudioSupport provides support functionality for audio in iPhone, including automatic interrupt handling and audio data loading routines.

* SimpleIphoneAudio layers on top of the other three, providing an even simpler interface for playing background music and sound effects.