NDLI: Unsupervised prosodic phrase boundary labeling of Mandarin speech synthesis database using context-dependent HMM

Content Provider	IEEE Xplore Digital Library
Author	Chen-Yu Yang Zhen-Hua Ling Li-Rong Dai
Copyright Year	2013
Description	Author affiliation: Nat. Eng. Lab. of Speech & Language Inf. Process., Univ. of Sci. & Technol. of China, Hefei, China (Chen-Yu Yang; Zhen-Hua Ling; Li-Rong Dai)
Abstract	In this paper, an automatic and unsupervised method based on context-dependent hidden Markov model (CD-HMM) is proposed for labeling the phrase boundary positions of a Mandarin speech synthesis database. The initial phrase boundary labels are predicted by clustering the durations of the pauses between every two prosodic words in an unsupervised way. Then, the CD-HMMs for the spectrum, F0 and phone duration are estimated by a means similar to the HMM-based parametric speech synthesis using the initial phrase boundary labels. These labels are further updated by Viterbi decoding under the maximum likelihood criterion given the acoustic feature sequences and the trained CD-HMMs. The model training and Viterbi decoding procedures are conducted iteratively until convergence. Experimental results on a Mandarin speech synthesis database show that this method is able to label the phrase boundary positions much more accurately than the text-analysis-based method without requiring any manually labeled training data. The unit selection speech synthesis system constructed using the phrase boundary labels generated by our proposed method achieves similar performance to that using the manual labels.
Starting Page	6875
Ending Page	6879
File Size	293484
Page Count	5
File Format	PDF
ISBN	9781479903566
ISSN	15206149
DOI	10.1109/ICASSP.2013.6638994
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-05-26
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hidden Markov models Labeling Speech Training Databases Speech synthesis Acoustics Viterbi decoding speech synthesis phrase boundary unsupervised labeling context-dependent hidden Markov model
Content Type	Text
Resource Type	Article

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