Hendrikse, Maartje M. E. and Llorach, Gerard and Hohmann, Volker and Grimm, Giso (2019) Movement and Gaze Behavior in Virtual Audiovisual Listening Environments Resembling Everyday Life. Trends in Hearing, 23. p. 233121651987236. ISSN 2331-2165

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Abstract

Recent achievements in hearing aid development, such as visually guided hearing aids, make it increasingly important to study movement behavior in everyday situations in order to develop test methods and evaluate hearing aid performance. In this work, audiovisual virtual environments (VEs) were designed for communication conditions in a living room, a lecture hall, a cafeteria, a train station, and a street environment. Movement behavior (head movement, gaze direction, and torso rotation) and electroencephalography signals were measured in these VEs in the laboratory for 22 younger normal-hearing participants and 19 older normal-hearing participants. These data establish a reference for future studies that will investigate the movement behavior of hearing-impaired listeners and hearing aid users for comparison. Questionnaires were used to evaluate the subjective experience in the VEs. A test–retest comparison showed that the measured movement behavior is reproducible and that the measures of movement behavior used in this study are reliable. Moreover, evaluation of the questionnaires indicated that the VEs are sufficiently realistic. The participants rated the experienced acoustic realism of the VEs positively, and although the rating of the experienced visual realism was lower, the participants felt to some extent present and involved in the VEs. Analysis of the movement data showed that movement behavior depends on the VE and the age of the subject and is predictable in multitalker conversations and for moving distractors. The VEs and a database of the collected data are publicly available.

Item Type:	Article
Additional Information:	Publiziert mit Hilfe des DFG-geförderten Open Access-Publikationsfonds der Carl von Ossietzky Universität Oldenburg.
Uncontrolled Keywords:	audiovisual virtual reality, head movement, gaze direction, torso rotation, hearing aid evaluation
Subjects:	Science and mathematics > Physics Technology, medicine, applied sciences > Medicine and health
Divisions:	Faculty of Medicine and Health Sciences > Department of Medical Physics and Acoustics
Date Deposited:	19 Mar 2020 14:03
Last Modified:	19 Mar 2020 14:03
URI:	https://oops.uni-oldenburg.de/id/eprint/4523
URN:	urn:nbn:de:gbv:715-oops-46047
DOI:	10.1177/2331216519872362
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