| 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 | 2019-12-12 15:25 Performance evaluation of a non-linear beamformer with a small-scale microphone array Ryoutarou Oka, Mitunori Mizumachi (KIT)  EA2019-72 |
|
| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Beamforming has been one of the most important techniques in noise reduction under adverse acoustic environments. Traditional beamformers were designed in analytical and adaptive schemes. On the other hands, recent neural network-based beamformers achieve the great success in signal enhancement. The authors have also proposed a broadband neural network-based beamformer, which can deal with wide-band speech signals. The performance of the proposed beamformer was confirmed in computer simulation with an 8-ch equally-spaced linear microphone array, of which the spacing between neighboring microphones was 10 cm, respectively. In this paper, the performance of the proposed beamformer is evaluated with a hand-held small-scale microphone array, which is developed with miniature MEMS microphones. It is confirmed that the nonlinear beamformer could sharpen the main lobe even with the small-scale microphone array, although an analytical linear beamformer, that is, delay-and-sum beamformer, could not achieve signal enhancement. It is considered that the nonlinear neural network-based beamformer could enhance minute differences in amplitude and phase among multi-channel observations. Keywords Noise, reduction, Non-linear beamforming, MEMS microphone array |
|
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Noise reduction / Non-linear beamforming / MEMS microphone array / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 334, EA2019-72, pp. 45-50, Dec. 2019. | |
| Paper # | EA2019-72 | |
| Date of Issue | 2019-12-05 (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 | EA2019-72 |
|
| Conference Information | |
| Committee | EA |
| Conference Date | 2019-12-12 - 2019-12-13 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kyushu Inst. Tech. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Engineering/Electro Acoustics, and Related Topics |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2019-12-EA |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Performance evaluation of a non-linear beamformer with a small-scale microphone array |
| Sub Title (in English) | |
| Keyword(1) | Noise reduction |
| Keyword(2) | Non-linear beamforming |
| Keyword(3) | MEMS microphone array |
| Keyword(4) | |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Ryoutarou Oka |
| 1st Author's Affiliation | kyushyu institute of technology (KIT) |
| 2nd Author's Name | Mitunori Mizumachi |
| 2nd Author's Affiliation | kyushyu institute of technology (KIT) |
| 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 | 2019-12-12 15:25:00 |
| Presentation Time | 25 minutes |
| Registration for | EA |
| Paper # | EA2019-72 |
| Volume (vol) | vol.119 |
| Number (no) | no.334 |
| Page | pp.45-50 |
| #Pages | 6 |
| Date of Issue | 2019-12-05 (EA) |
[Return to Top Page]