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Digital Adaptive Echo-Canceller for Room Acoustics ImprovementTOPA, M. D.   , MURESAN, I. , KIREI, B. S. , HOMANA, I. |
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Author keywords
adaptive system identification, echo-canceller, reverberation, room acoustics, sub-band filtering
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About this article
Date of Publication: 2010-02-27
Volume 10, Issue 1, Year 2010, On page(s): 50 - 53
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2010.01008
Web of Science Accession Number: 000275458900008
SCOPUS ID: 77954686033
Abstract
This paper presents a method to cancel the echoes generated by reflections in a room. The starting point is the full-band adaptive system identification method, where the unknown system is the room, providing several reflections of the sound. A sub-band filtering method is proposed and all the aspects regarding the filter banks, the structure, the number of sub-bands and the order of the required filters are analyzed. The performance is studied with respect to the provided error and the echo return loss enhancement. The asymmetric structure sub-band filtering offers a better performance than the full-band implementation. Increasing the number of sub-bands will also enhance the performance of the system. |
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[1] A novel sub-band adaptive filtering for acoustic echo cancellation based on empirical mode decomposition algorithm, He, Xiaochuan, Goubran, Rafik A., Liu, Peter X., International Journal of Speech Technology, ISSN 1381-2416, Issue 1, Volume 17, 2014.
Digital Object Identifier: 10.1007/s10772-013-9203-7 [CrossRef]
[2] Rapid Prototyping of Sub-band Acoustic Echo Cancellers on FPGA Platforms, MURESAN, I., KIREI, B. S., CONTAN, C., TOPA, M. D., Advances in Electrical and Computer Engineering, ISSN 1582-7445, Issue 3, Volume 13, 2013.
Digital Object Identifier: 10.4316/AECE.2013.03008 [CrossRef] [Full text]
[3] Blind Source Separation for Convolutive Mixtures with Neural Networks, KIREI, B. S., TOPA, M. D., MURESAN, I., HOMANA, I., TOMA, N., Advances in Electrical and Computer Engineering, ISSN 1582-7445, Issue 1, Volume 11, 2011.
Digital Object Identifier: 10.4316/AECE.2011.01010 [CrossRef] [Full text]
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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania
All rights reserved: Advances in Electrical and Computer Engineering is a registered trademark of the Stefan cel Mare University of Suceava. No part of this publication may be reproduced, stored in a retrieval system, photocopied, recorded or archived, without the written permission from the Editor. When authors submit their papers for publication, they agree that the copyright for their article be transferred to the Faculty of Electrical Engineering and Computer Science, Stefan cel Mare University of Suceava, Romania, if and only if the articles are accepted for publication. The copyright covers the exclusive rights to reproduce and distribute the article, including reprints and translations.
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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania
All rights reserved: Advances in Electrical and Computer Engineering is a registered trademark of the Stefan cel Mare University of Suceava. No part of this publication may be reproduced, stored in a retrieval system, photocopied, recorded or archived, without the written permission from the Editor. When authors submit their papers for publication, they agree that the copyright for their article be transferred to the Faculty of Electrical Engineering and Computer Science, Stefan cel Mare University of Suceava, Romania, if and only if the articles are accepted for publication. The copyright covers the exclusive rights to reproduce and distribute the article, including reprints and translations.
Permission for other use: The copyright owner's consent does not extend to copying for general distribution, for promotion, for creating new works, or for resale. Specific written permission must be obtained from the Editor for such copying. Direct linking to files hosted on this website is strictly prohibited.
Disclaimer: Whilst every effort is made by the publishers and editorial board to see that no inaccurate or misleading data, opinions or statements appear in this journal, they wish to make it clear that all information and opinions formulated in the articles, as well as linguistic accuracy, are the sole responsibility of the author.
