Nick Mariette reviews some audio augmented reality projects in one part of his paper
Mariette, N. (2006). Perceptual Evaluation of Spatial Audio for “Audio Nomad” Augmented Reality Artworks. Paper presented at the Engage, Sydney.
The focus of this review is on the user perception evaluation and the following projects are included: Hear&There, Walk in the Wired Woods, LISTEN, The Personal Guidance System (PGS), Tactical Sound Garden.
His forthcoming paper
Mariette, N. (2007). From Backpack to Handheld: The Recent Trajectory of Personal Location Aware Spatial Audio. Paper presented at the Perth Digital Arts Conference (PerthDAC 2007), Perth
looks also interesting.
For both paper see