Paper Abstract and Keywords |
Presentation |
2023-02-28 11:40
Acoustic Echo and Noise Canceller Based on Minimization of Shared-Error Signal Kenta Iwai, Takanobu Nishiura (Ritsumeikan Univ.) EA2022-86 SIP2022-130 SP2022-50 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper proposes a new acoustic echo and noise canceller (AENC) based on minimizing a shared error signal. The conventional AENC utilizes an acoustic echo canceller (AEC) based on a frequency-domain block normalized least mean square (FBNLMS) algorithm and a noise suppressor (NS) based on a Wiener filter. Since their optimization methods differ from each other, it is difficult to simultaneously optimize the AEC and NS in the conventional AENC. To solve this problem, the proposed AENC consists of the AEC and adaptive noise canceller (ANC), which are realized by time-domain adaptive digital filters (ADFs). Both the AEC and ANC are based on the minimizing the instantaneous square error signal for optimization of the ADFs. Also, the AEC and ANC share the same error signal to update their ADFs. Then, the AEC and ANC can be optimized simultaneously. By minimizing the shared error signal, the shared-error NLMS (SENLMS) algorithm is derived in the proposed AENC and used to update the AEC and ANC. The computer simulation results show that the proposed AENC achieves the 40 dB improvement of the noise reduction and the 20 dB improvement of the echo reduction. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Acoustic echo and noise canceller / minimization of shared-error signal / shared-error NLMS algorithm / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 122, no. 388, SIP2022-130, pp. 67-72, Feb. 2023. |
Paper # |
SIP2022-130 |
Date of Issue |
2023-02-21 (EA, SIP, SP) |
ISSN |
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) |
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EA2022-86 SIP2022-130 SP2022-50 |
Conference Information |
Committee |
SP IPSJ-SLP EA SIP |
Conference Date |
2023-02-28 - 2023-03-01 |
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(See Japanese page) |
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Paper Information |
Registration To |
SIP |
Conference Code |
2023-02-SP-SLP-EA-SIP |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
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(See Japanese page) |
Title (in English) |
Acoustic Echo and Noise Canceller Based on Minimization of Shared-Error Signal |
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Acoustic echo and noise canceller |
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minimization of shared-error signal |
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shared-error NLMS algorithm |
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1st Author's Name |
Kenta Iwai |
1st Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
2nd Author's Name |
Takanobu Nishiura |
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Ritsumeikan University (Ritsumeikan Univ.) |
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Speaker |
Author-1 |
Date Time |
2023-02-28 11:40:00 |
Presentation Time |
20 minutes |
Registration for |
SIP |
Paper # |
EA2022-86, SIP2022-130, SP2022-50 |
Volume (vol) |
vol.122 |
Number (no) |
no.387(EA), no.388(SIP), no.389(SP) |
Page |
pp.67-72 |
#Pages |
6 |
Date of Issue |
2023-02-21 (EA, SIP, SP) |
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