Effects of feedback, mobility and index of difficulty on deictic spatial audio target acquisition in the horizontal plane

Marentakis, G.N. and Brewster, S.A. (2006) Effects of feedback, mobility and index of difficulty on deictic spatial audio target acquisition in the horizontal plane. In: Conference on Human Factors in Computing Systems, Montréal, Québec, Canada, 22-27 April 2006, pp. 359-368. ISBN 1595933727 (doi:10.1145/1124772.1124826)

[img]
Preview
Text
CHI332006_marentakis.pdf

709kB

Publisher's URL: http://dx.doi.org/10.1145/1124772.1124826

Abstract

We present the results of an empirical study investigating the effect of feedback, mobility and index of difficulty on a deictic spatial audio target acquisition task in the horizontal plane in front of a user. With audio feedback, spatial audio display elements are found to enable usable deictic interac-tion that can be described using Fitts law. Feedback does not affect perceived workload or preferred walking speed compared to interaction without feedback. Mobility is found to degrade interaction speed and accuracy by 20%. Participants were able to perform deictic spatial audio target acquisition when mobile while walking at 73% of their pre-ferred walking speed. The proposed feedback design is ex-amined in detail and the effects of variable target widths are quantified. Deictic interaction with a spatial audio display is found to be a feasible solution for future interface designs.

Item Type:Conference Proceedings
Additional Information:This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution.
Keywords:3D audio, Fitts' Law, gestures, mobile interaction, spatial audio target acquisition
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Brewster, Professor Stephen
Authors: Marentakis, G.N., and Brewster, S.A.
Subjects:Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Q Science > QA Mathematics > QA76 Computer software
College/School:College of Science and Engineering > School of Computing Science
Publisher:ACM Press
ISBN:1595933727
Copyright Holders:Copyright © 2006 ACM Press
First Published:First published in Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

University Staff: Request a correction | Enlighten Editors: Update this record