NDLI: Analysis of detection of vowel offset point for coded speech

Content Provider	IEEE Xplore Digital Library
Author	Yadav, J. Rao, K.S.
Copyright Year	2013
Description	Author affiliation: Sch. of Inf. Technol., Indian Inst. of Technol. Kharagpur, Kharagpur, India (Yadav, J.; Rao, K.S.)
Abstract	Vowel onset and vowel offset points are the instants at which the onset and offset of vowel take place in the speech signal. Vowel regions start with the vowel onset point and end with the vowel offset point. This paper discusses the effect of speech coding on detection of vowel offset point. Speech coding is the one of the major degradation in mobile environment. In this work, effect of speech coding is studied by using two recently developed methods, COMB-ESM and SE-GC for vowel offset point detection. COMB-ESM method uses the combination of evidences from excitation source, spectral peaks energy and modulation spectrum. SE-GC method uses spectral energy within glottal closure region for detecting the vowel offset points. Speech coders used in this study are GSM full rate (ETSI 06.10), CELP (FS-1016), and MELP (TI 2.4 kbps). Performance of vowel offset point detection methods is evaluated using TIMIT database and consonant-vowel (CV) units collected from the broadcast news corpus. Experimental results show that performance of the SE-GC method is better compared to COMB-ESM method under speech coding.
Starting Page	485
Ending Page	490
File Size	767416
Page Count	6
File Format	PDF
e-ISBN	9781479901920
DOI	10.1109/IC3.2013.6612244
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-08-08
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	GSM COMB-ESM SE-GC Glottal closure region Excitation source Degradation Modulation spectrum Speech coding Databases Spectral peaks Spectral energy Modulation Speech recognition MELP Speech CELP Vowel offset point
Content Type	Text
Resource Type	Article

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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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