Location-based games, such as pervasive games and geocaching could benefit from the use of audio, in particular spatial sound. In this paper, we present a binaural recording and rendering system that is capable of both including location and orientation information to audio files and playing audio content related to location. Altogether we introduce a platform for building augmented reality audio applications suitable for outdoor use. The Audiomemo application is presented to highlight the possibilities of location-based spatial sound for games.
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