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| Presentation | 2008-12-10 16:10 Isolated word recognition based on speech structures and discriminant analysis Satoshi Asakawa, Yu Qiao, Nobuaki Minematsu, Keikichi Hirose (Univ. of Tokyo)  NLC2008-58 SP2008-113 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Non-linguistic factors of speech such as vocal tract sizes and recording devices easily change acoustic features of speech. Recently, a new representation of speech with complete cancelation of these changes has been proposed. This representation discards the absolute properties of speech events and captures only the contrasts among them. As a full set of the contrasts in the events can define a unique geometrical structure, the proposal can be regarded as structural representation. In this paper, the new representation is examined based on two kinds of isolated word recognition tasks, a five-vowel-sequence word set and a phonetically balanced word set. Here, two problems, too strong invariance and too high dimensionality, are solved by multiple stream structuralization and linear discriminant analysis. To compare the conventional method and the proposed one, frequency-warped utterances are also used for testing. The experimental results show the high robustness of our proposed method. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | structural representation of speech / non-linguistic features / Bhattacharyya distance / linear discriminant analysis / isolated word recognition / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 338, SP2008-113, pp. 203-208, Dec. 2008. | |
| Paper # | SP2008-113 | |
| Date of Issue | 2008-12-02 (NLC, 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 | NLC2008-58 SP2008-113 |
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| Conference Information | |
| Committee | SP NLC |
| Conference Date | 2008-12-09 - 2008-12-10 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Waseda Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SP |
| Conference Code | 2008-12-SP-NLC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Isolated word recognition based on speech structures and discriminant analysis |
| Sub Title (in English) | |
| Keyword(1) | structural representation of speech |
| Keyword(2) | non-linguistic features |
| Keyword(3) | Bhattacharyya distance |
| Keyword(4) | linear discriminant analysis |
| Keyword(5) | isolated word recognition |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Satoshi Asakawa |
| 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 | Keikichi Hirose |
| 4th Author's Affiliation | The University of Tokyo (Univ. of Tokyo) |
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| Speaker | Author-1 |
| Date Time | 2008-12-10 16:10:00 |
| Presentation Time | 110 minutes |
| Registration for | SP |
| Paper # | NLC2008-58, SP2008-113 |
| Volume (vol) | vol.108 |
| Number (no) | no.337(NLC), no.338(SP) |
| Page | pp.203-208 |
| #Pages | 6 |
| Date of Issue | 2008-12-02 (NLC, SP) |
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