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Paper Abstract and Keywords
Presentation 2020-03-02 13:00
[Poster Presentation] Selective synthesis of sound field using directivity control and stereo width control
Toshiharu Horiuchi, Sumaru Niida (KDDI Research) EA2019-119 SIP2019-121 SP2019-68
Abstract (in Japanese) (See Japanese page) 
(in English) This report presents a selective synthesis technique of sound field using directivity control and stereo width control. We previously presented an arbitrarily angled audio-visual player app for 360-degree videos using our selective synthesis sound field technique. This technique can synthesize two-channel stereo sound with scaled stereo width having an arbitrary angle range from 0 to 360 degrees centering on an arbitrary direction from multi-channel surround sound based on spectral modification. In the app, users can enjoy arbitrarily angled videos that they choose themselves by manipulating the touchscreen, and the stereo sound changes in terms of its spatial synchronization depending on the view. In this report, we introduce our proposed selective synthesis technique of sound field combined with directivity control.
Keyword (in Japanese) (See Japanese page) 
(in English) sound field synthesis / microphone array / 360-degree video / interactive viewing / user-centric entertainment / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 439, EA2019-119, pp. 107-110, March 2020.
Paper # EA2019-119 
Date of Issue 2020-02-24 (EA, SIP, SP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 EA2019-119 SIP2019-121 SP2019-68

Conference Information
Committee SP EA SIP  
Conference Date 2020-03-02 - 2020-03-03 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Industry Support Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EA 
Conference Code 2020-03-SP-EA-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Selective synthesis of sound field using directivity control and stereo width control 
Sub Title (in English)  
Keyword(1) sound field synthesis  
Keyword(2) microphone array  
Keyword(3) 360-degree video  
Keyword(4) interactive viewing  
Keyword(5) user-centric entertainment  
1st Author's Name Toshiharu Horiuchi  
1st Author's Affiliation KDDI Research, Inc. (KDDI Research)
2nd Author's Name Sumaru Niida  
2nd Author's Affiliation KDDI Research, Inc. (KDDI Research)
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Date Time 2020-03-02 13:00:00 
Presentation Time 90 
Registration for EA 
Paper # EA2019-119, SIP2019-121, SP2019-68 
Volume (vol) 119 
Number (no) no.439(EA), no.440(SIP), no.441(SP) 
Page pp.107-110 
Date of Issue 2020-02-24 (EA, SIP, SP) 

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