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Paper Abstract and Keywords
Presentation 2018-08-23 14:45
Evaluation of Route Guidance for 3D Audio Navigation System for the Visually Impaired
Toya Kitagawa, Kazuhiro Kondo (Yamagata Univ.) EA2018-33
Abstract (in Japanese) (See Japanese page) 
(in English) We have been studying a navigation system using 3D acoustics for visually impaired people. There dose exist systems that guide the optimal route using voice, but it is difficult to grasp the contents of guidance because voice guidance may be mixed with other noise in environments where there are many conversations such as crowds. Also, in the case of visually impaired people who can not accurately grasp the sense of distance, there was a problem of deviating from the intended path. These problems are thought to be improved by using 3D audio of the sinusoidal sound as the guidance sound. We aim to enable visually impaired people to walk accurately even with complicated routes using sound image localization capability. Specifically, using binaural simulation and head tracking, guide sounds are generated from the direction you want to guide the user to go in small steps. The system creates a new sound image at the next step when the user reaches the intermediate goal. This operation is repeated. The advantage of this system is that even if it is a simple sound signal, distance and azimuth information can be provided by 3D audio, so that no guided voice is required. In previous research, this system was evaluated by simulation. However, because the simulator moves in the virtual space, the subject himself does not move and there is no danger of obstacles. Thus, we could not confirm the problem in its actual use. In this paper, we implemented a 3D audio navigation system on a smartphone and conducted an experiment to evaluate whether it could guide the path in real space. As a result, we conclude that the 3D audio navigation system for visually impaired people is a very effective route guidance means that can be used practically.
Keyword (in Japanese) (See Japanese page) 
(in English) 3D audio / AAR (Audio Augmented Reality) / visually impaired / navigation system / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 190, EA2018-33, pp. 31-36, Aug. 2018.
Paper # EA2018-33 
Date of Issue 2018-08-16 (EA) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EA2018-33

Conference Information
Committee EA ASJ-H  
Conference Date 2018-08-23 - 2018-08-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Gakuin Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Engineering/Electro Acoustics, Psychological and Physiological Acoustics, and Related Topics 
Paper Information
Registration To EA 
Conference Code 2018-08-EA-H 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of Route Guidance for 3D Audio Navigation System for the Visually Impaired 
Sub Title (in English)  
Keyword(1) 3D audio  
Keyword(2) AAR (Audio Augmented Reality)  
Keyword(3) visually impaired  
Keyword(4) navigation system  
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1st Author's Name Toya Kitagawa  
1st Author's Affiliation Yamagata University (Yamagata Univ.)
2nd Author's Name Kazuhiro Kondo  
2nd Author's Affiliation Yamagata University (Yamagata Univ.)
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Speaker Author-1 
Date Time 2018-08-23 14:45:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2018-33 
Volume (vol) vol.118 
Number (no) no.190 
Page pp.31-36 
#Pages 6 
Date of Issue 2018-08-16 (EA) 

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