Paper Abstract and Keywords |
Presentation |
2010-11-18 15:45
An Estimation Algorithm of Spectral Parameter Trajectory in Statistical Vocoder Tomoki Toda (NAIST) SP2010-75 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This report presents a novel statistical approach to the spectral parameter sequence estimation of a speech signal in statistical vocoder. Because speech is a quasi-periodic signal, there are many missing frequency components between adjacent F0 harmonics. The proposed method determines a time-varying spectral parameter sequence based on the maximum a posteriori (MAP) estimation considering both harmonic components observed at each analyzed frame and those at other frames to stochastically interpolate the missing frequency components. To develop this framework, a factor analyzed trajectory hidden Markov model (FA-trajectory HMM) is proposed as a probabilistic model of a sequence of harmonic components. The experimental results show the effectiveness of the proposed method. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
spectral parameter estimation / harmonic components / factor analysis / HMM / MAP / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, no. 297, SP2010-75, pp. 35-40, Nov. 2010. |
Paper # |
SP2010-75 |
Date of Issue |
2010-11-11 (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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SP2010-75 |
Conference Information |
Committee |
SP |
Conference Date |
2010-11-18 - 2010-11-19 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Aichi Prefectural Univ. |
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(See Japanese page) |
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Paper Information |
Registration To |
SP |
Conference Code |
2010-11-SP |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
An Estimation Algorithm of Spectral Parameter Trajectory in Statistical Vocoder |
Sub Title (in English) |
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spectral parameter estimation |
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harmonic components |
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factor analysis |
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HMM |
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MAP |
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1st Author's Name |
Tomoki Toda |
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Nara Institute of Science and Technology (NAIST) |
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Speaker |
Author-1 |
Date Time |
2010-11-18 15:45:00 |
Presentation Time |
30 minutes |
Registration for |
SP |
Paper # |
SP2010-75 |
Volume (vol) |
vol.110 |
Number (no) |
no.297 |
Page |
pp.35-40 |
#Pages |
6 |
Date of Issue |
2010-11-11 (SP) |