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3D audio as an information-environment: manipulating perceptual significance for differntiation and pre-selectionLennox, Peter; Vaughan, John; Myatt, Tony; University of York (Laboratory of Acoustics and audio signal processing and the Telecommunications Software and Multimedia Laboratory, Helsinki University of Technology, 29/08/2001)Contemporary use of sound as artificial information display is rudimentary, with little 'depth of significance' to facilitate users' selective attention. We believe that this is due to conceptual neglect of 'context' or perceptual background information. This paper describes a systematic approach to developing 3D audio information environments that utilise known cognitive characteristics, in order to promote rapidity and ease of use. The key concepts are perceptual space, perceptual significance, ambience labelling information and cartoonification.
From surround to true 3-DLennox, Peter; Myatt, Tony; Vaughan, John; University of York (Audio Engineering Society, 1999-04)To progress from surround sound to true 3-D requires an updating of the psychoacoustical theories which underlie current technologies. This paper shows how J.J.Gibson’s ecological approach to perception can be applied to audio perception and used to derive 3-D audio technologies based on intelligent pattern recognition and active hypothesis testing. These technologies are suggested as methods which can be used to generate audio environments that are believable and can be explored.