The Corona Audio System has advanced OpenAL (Open Audio Library) features. OpenAL is designed for efficient rendering of multichannel three-dimensional positional audio. The general functionality of OpenAL is encoded in source objects, audio buffers, and a single listener. A source object contains a pointer to a buffer, the velocity, position and direction of the sound, and the intensity of the sound. Buffers contain audio data in PCM format, either 8 or 16-bit, in either mono or stereo format. The listener object contains the velocity, position and direction of the listener, and the general gain applied to all sound.
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For more information on the Corona Audio System you can go to: http://developer.anscamobile.com/partner/audionotes. General information on OpenAL can be found at: http://www.openal.com..