NDLI: Global variance modeling on frequency domain delta LSP for HMM-based speech synthesis

Content Provider	IEEE Xplore Digital Library
Author	Shifeng Pan Nankaku, Y. Tokuda, K. Jianhua Tao
Copyright Year	2011
Description	Author affiliation: Department of Computer Science, Nagoya Institute of Technology, Japan (Nankaku, Y.; Tokuda, K.) \|\| National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, China (Shifeng Pan; Jianhua Tao)
Abstract	The speech parameter generation algorithm considering global variance (GV) for HMM-based speech synthesis proved to be effective against the over-smoothing problem. However, the correlation between dimensions of parameter vector is not sufficiently considered in the current GV model. For some parameters, e.g., Line Spectral Pairs (LSP), the difference of adjacent LSPs has strong influence on the spectral envelope. Considering this important feature, the paper proposes a GV modeling on the difference of adjacent LSPs, i.e., GV on frequency domain delta LSP. By improving the GV likelihood on frequency domain delta LSP, the over-smoothing effect of generated parameter trajectory is better alleviated than conventional one. The result of a perceptual evaluation shows the proposed method outperforms the conventional one, and the naturalness of synthetic speech is improved.
Starting Page	4716
Ending Page	4719
File Size	341900
Page Count	4
File Format	PDF
ISBN	9781457705380
ISSN	15206149
e-ISBN	9781457705397
e-ISBN	9781457705373
DOI	10.1109/ICASSP.2011.5947408
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-22
Publisher Place	Czech Republic
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hidden Markov models Speech Frequency domain analysis Speech synthesis Correlation Training Trajectory global variance speech synthesis hidden Markov model
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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