| IEICE Technical Committee Submission System Conference Paper's Information |
Online Proceedings [Sign in] Tech. Rep. Archives |
| Go Top Page | Go Previous | [Japanese] / [English] |
| Paper Abstract and Keywords | ||
| Presentation | 2013-07-19 10:00 A Howling Suppression using the Adaptive Multi Notch Filter Naoya Kawabata, Takashi Yazu (OKI)  EA2013-45 |
|
| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In a speakerphone system for videoconferencing or audio conferencing, etc., sounds output from a loud speaker is fed back into a microphone, which is occurring acoustic echoes that return back to a transmitting side. Furthermore, if the gain of the feedback system is 1 or more, the system becomes an oscillating state so-called howling. Since howling significantly impedes call, much research and development on howling suppression methods has been conducted heretofore. In this paper, we propose an adaptive notch filter that is suitable for suppression of howling. In addition, we propose an "adaptive multi-notch filter" that is cascaded adaptive notch filter and can suppress multiple frequencies. As the experimental result, the proposed method was confirmed to be superior convergence time and suppression performance for many type of howling. Furthermore, as the result of the real machine testing, it was confirmed that it is possible to suppress the howling. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Adaptive notch lter / Adaptive multi-notch lter / Howling / Adaptive lter / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 113, no. 134, EA2013-45, pp. 69-74, July 2013. | |
| Paper # | EA2013-45 | |
| Date of Issue | 2013-07-11 (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 | EA2013-45 |
|
| Conference Information | |
| Committee | EA |
| Conference Date | 2013-07-18 - 2013-07-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Health Sci. Univ. of Hokkaido |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Engineering/Electro Acoustics, Musical Acoustics, Psychological and Physiological Acoustics, and Related Topics |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2013-07-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Howling Suppression using the Adaptive Multi Notch Filter |
| Sub Title (in English) | |
| Keyword(1) | Adaptive notch lter |
| Keyword(2) | Adaptive multi-notch lter |
| Keyword(3) | Howling |
| Keyword(4) | Adaptive lter |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Naoya Kawabata |
| 1st Author's Affiliation | Oki Electric Industry Co., Ltd (OKI) |
| 2nd Author's Name | Takashi Yazu |
| 2nd Author's Affiliation | Oki Electric Industry Co., Ltd (OKI) |
| 3rd Author's Name | |
| 3rd Author's Affiliation | () |
| 4th Author's Name | |
| 4th Author's Affiliation | () |
| 5th Author's Name | |
| 5th Author's Affiliation | () |
| 6th Author's Name | |
| 6th Author's Affiliation | () |
| 7th Author's Name | |
| 7th Author's Affiliation | () |
| 8th Author's Name | |
| 8th Author's Affiliation | () |
| 9th Author's Name | |
| 9th Author's Affiliation | () |
| 10th Author's Name | |
| 10th Author's Affiliation | () |
| 11th Author's Name | |
| 11th Author's Affiliation | () |
| 12th Author's Name | |
| 12th Author's Affiliation | () |
| 13th Author's Name | |
| 13th Author's Affiliation | () |
| 14th Author's Name | |
| 14th Author's Affiliation | () |
| 15th Author's Name | |
| 15th Author's Affiliation | () |
| 16th Author's Name | |
| 16th Author's Affiliation | () |
| 17th Author's Name | |
| 17th Author's Affiliation | () |
| 18th Author's Name | |
| 18th Author's Affiliation | () |
| Speaker | Author-1 |
| Date Time | 2013-07-19 10:00:00 |
| Presentation Time | 30 minutes |
| Registration for | EA |
| Paper # | EA2013-45 |
| Volume (vol) | vol.113 |
| Number (no) | no.134 |
| Page | pp.69-74 |
| #Pages | 6 |
| Date of Issue | 2013-07-11 (EA) |
[Return to Top Page]