Paper Abstract and Keywords |
Presentation |
2013-07-25 15:10
Effectiveness of discriminative approaches for speech recognition under noisy environments on the 2nd CHiME Challenge Yuuki Tachioka (Mitsubishi Electric), Shinji Watanabe, Jonathan Le Roux, John R Hershey (MERL) SP2013-55 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The 2nd CHiME challenge is a difficult two-microphone speech recognition task with non-stationary interference. We investigate the effectiveness of state-of-the-art ASR techniques such as discriminative training, various feature transformations and deep neural networks for reverberated and noisy speech recognition, combined with a simple noise suppression method relying on prior-based binary masking with estimated angle of arrival. Moreover, we propose an augmented discriminative feature transformation that can introduce arbitrary features to a discriminative feature transform, an efficient combination method of discriminative language modeling and minimum Bayes risk decoding in an ASR post-processing stage. These techniques are effective for middle-vocabulary sub-task (Track 2) of CHiME challenge. Our performance is the best among participants. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
CHiME challenge / Noise robust ASR / Discriminative methods / Feature transformation / Prior-based binary masking / / / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 161, SP2013-55, pp. 13-18, July 2013. |
Paper # |
SP2013-55 |
Date of Issue |
2013-07-18 (SP) |
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) |
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SP2013-55 |
Conference Information |
Committee |
SP IPSJ-SLP |
Conference Date |
2013-07-25 - 2013-07-27 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Soho (togatta spa) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Speech recognition and understanding, dialog system, etc. |
Paper Information |
Registration To |
SP |
Conference Code |
2013-07-SP-SLP |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Effectiveness of discriminative approaches for speech recognition under noisy environments on the 2nd CHiME Challenge |
Sub Title (in English) |
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Keyword(1) |
CHiME challenge |
Keyword(2) |
Noise robust ASR |
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Discriminative methods |
Keyword(4) |
Feature transformation |
Keyword(5) |
Prior-based binary masking |
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1st Author's Name |
Yuuki Tachioka |
1st Author's Affiliation |
Mitsubishi Electric (Mitsubishi Electric) |
2nd Author's Name |
Shinji Watanabe |
2nd Author's Affiliation |
Mitsubishi Electric Research Laboratories (MERL) |
3rd Author's Name |
Jonathan Le Roux |
3rd Author's Affiliation |
Mitsubishi Electric Research Laboratories (MERL) |
4th Author's Name |
John R Hershey |
4th Author's Affiliation |
Mitsubishi Electric Research Laboratories (MERL) |
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Speaker |
Author-1 |
Date Time |
2013-07-25 15:10:00 |
Presentation Time |
30 minutes |
Registration for |
SP |
Paper # |
SP2013-55 |
Volume (vol) |
vol.113 |
Number (no) |
no.161 |
Page |
pp.13-18 |
#Pages |
6 |
Date of Issue |
2013-07-18 (SP) |
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