Paper Abstract and Keywords |
Presentation |
Comprehensive evaluations of BC speech restoration method based on linear prediction Masashi Unoki, Xugang Lu, Thang tat Vu, Kota Kinugasa, Masato Akagi (JAIST) SP2008-24 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Bone-conducted (BC) speech can be used instead of air-conducted (AC) speech for speech communication and speech recognition systems in an extremely noisy environment. However, it has very poor sound quality and its intelligibility is degraded when transmitted through bone conduction. Therefore, blindly improving quality and intelligibility of BC speech is a challenging topic. In previous study, we proposed a linear prediction (LP) based blind-restoration model to improve voice quality and intelligibility of BC speech and we showed usefulness of the proposed method in clean condition. In this paper, as realistic applications, we therefore comprehensively evaluated the proposed model in comparison with other models to find out whether the model could adequately improve the BC speech or not, via Japanese word intelligibility and word recognition tests in both clean and noisy environments. As results, it was found that the method can be available in high noisy environemnts, without Lombard effects. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Bone-conducted speech / Linear prediction / Lombard effect / Speech intelligibility test / Bone-conducted speech recognition / / / |
Reference Info. |
IEICE Tech. Rep., vol. 108, no. 116, SP2008-24, pp. 25-30, June 2008. |
Paper # |
SP2008-24 |
Date of Issue |
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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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SP2008-24 |
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