NDLI: Vowel onset point detection for noisy speech using spectral energy at formant frequencies

Content Provider	Springer Nature Link
Author	Vuppala, Anil Kumar Rao, K. Sreenivasa
Copyright Year	2012
Abstract	In this paper, we propose a method for robust detection of the vowel onset points (VOPs) from noisy speech. The proposed VOP detection method exploits the spectral energy at formant frequencies of the speech segments present in glottal closure region. In this work, formants are extracted by using group delay function, and glottal closure instants are extracted by using zero frequency filter based method. Performance of the proposed VOP detection method is compared with the existing method, which uses the combination of evidence from excitation source, spectral peaks energy and modulation spectrum. Speech data from TIMIT database and noise samples from NOISEX database are used for analyzing the performance of the VOP detection methods. Significant improvement in the performance of VOP detection is observed by using proposed method compared to existing method.
Starting Page	229
Ending Page	235
Page Count	7
File Format	PDF
ISSN	13812416
Journal	International Journal of Speech Technology
Volume Number	16
Issue Number	2
e-ISSN	15728110
Language	English
Publisher	Springer US
Publisher Date	2012-10-23
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Vowel onset point (VOP) Formant frequencies Glottal closure region Excitation source Spectral peaks Modulation spectrum Signal, Image and Speech Processing Social Sciences Artificial Intelligence (incl. Robotics)
Content Type	Text
Resource Type	Article
Subject	Human-Computer Interaction Computer Vision and Pattern Recognition Software Linguistics and Language

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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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