Navigation help in 3D worlds: some empirical evidences on use of sound |
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Authors: | C Ardito M F Costabile A De Angeli F Pittarello |
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Affiliation: | (1) Dipartimento di Informatica, Università di Bari, Via Orabona 4, 70125 Bari, Italy;(2) School of Informatics, The University of Manchester, PO Box 88, Sackville Street, Manchester, M60 1QD, UK;(3) Dipartimento di Informatica, Università Ca’ Foscari, Via Torino 155, 30172 Mestre, Venice, Italy |
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Abstract: | The concept of Interaction Locus (IL) has been introduced to help the users to orient, navigate, and identify relevant interaction
areas in 3D Virtual Environments (VEs). The IL is a multimodal concept: it adds to the 3D visual scene parallel information
channels that are perceived by other senses. In particular, the IL emphasizes the role of music as a navigation aid in a VE.
This paper reports three user-evaluations of different IL enriched virtual worlds, and in particular of the role of the IL
auditory component. Results suggest that audio in 3D plays not only an aesthetic role, which the users greatly appreciate,
but also a functional role simplifying navigation and helping the users to recognise scenes in the environment. Such a functional
role however is subordinated to a proper understanding of the link between music and virtual space. While these experiments
refer to desktop virtual reality environments, their findings are general enough to inform the design of navigational tools
for other segments of the mixed reality domain.
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Keywords: | Auditory interfaces Experimental evaluations Interaction locus Usability Virtual environments |
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