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| Presentation | 2009-06-25 09:30 Analysis and Utilization of Speaker Adaptation Techniques for Shadowing and Read-Speech Pronunciation Evaluation Dean Luo, Yu Qiao, Nobuaki Minematsu (Univ. of Tokyo), Yutaka Yamauchi (Tokyo International Univ.), Keikichi Hirose (Univ. of Tokyo)  SP2009-32 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this paper, we investigate the effects and problems of MLLR speaker adaptation when applied to pronunciation evaluation on shadowing and reading aloud. Automatic scoring and error detection experiments are conducted on two databases of Japanese learners’ English pronunciation. As we expected, over-adaptation causes misjudge of pronunciation accuracy. Following these experiments, two novel methods, Forced-aligned GOP scoring and Regularized-MLLR adaptation, are proposed to solve the adverse effects of MLLR adaption. Finally we examine how the automatic scores, the conventional GOP and proposed F-GOP, change according to the cognitive loads posed on learners. Experimental results show that shadowing can better reflect the learners’ true proficiency than reading aloud, and by selecting native utterances of adequate semantic difficulty, the evaluation performance by shadowing is even improved. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | shadowing / goodness of pronunciation / automatic scoring / CALL / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 99, SP2009-32, pp. 51-56, June 2009. | |
| Paper # | SP2009-32 | |
| Date of Issue | 2009-06-17 (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) | |
| Download PDF | SP2009-32 |
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| Conference Information | |
| Committee | SP |
| Conference Date | 2009-06-24 - 2009-06-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Clark Memorial Hall, Hokkaido Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | emotional speech, prosody, voice quality, speech production and perception, brain activity, etc. |
| Paper Information | |
| Registration To | SP |
| Conference Code | 2009-06-SP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis and Utilization of Speaker Adaptation Techniques for Shadowing and Read-Speech Pronunciation Evaluation |
| Sub Title (in English) | |
| Keyword(1) | shadowing |
| Keyword(2) | goodness of pronunciation |
| Keyword(3) | automatic scoring |
| Keyword(4) | CALL |
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| 1st Author's Name | Dean Luo |
| 1st Author's Affiliation | The University of Tokyo (Univ. of Tokyo) |
| 2nd Author's Name | Yu Qiao |
| 2nd Author's Affiliation | The University of Tokyo (Univ. of Tokyo) |
| 3rd Author's Name | Nobuaki Minematsu |
| 3rd Author's Affiliation | The University of Tokyo (Univ. of Tokyo) |
| 4th Author's Name | Yutaka Yamauchi |
| 4th Author's Affiliation | Tokyo International University (Tokyo International Univ.) |
| 5th Author's Name | Keikichi Hirose |
| 5th Author's Affiliation | The University of Tokyo (Univ. of Tokyo) |
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| Speaker | Author-1 |
| Date Time | 2009-06-25 09:30:00 |
| Presentation Time | 30 minutes |
| Registration for | SP |
| Paper # | SP2009-32 |
| Volume (vol) | vol.109 |
| Number (no) | no.99 |
| Page | pp.51-56 |
| #Pages | 6 |
| Date of Issue | 2009-06-17 (SP) |
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