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Estimation of Place of Articulation During Stop Closures of Vowel-Consonant-Vowel Utterances

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Title Estimation of Place of Articulation During Stop Closures of Vowel-Consonant-Vowel Utterances
 
Creator PANDEY, PC
SHAH, MS
 
Subject vocal-tract shape
formant frequencies
speech
estimation
place of articulation
polynomial approximation
speech training aids
 
Description Production of vowel-oral stop consonant-vowel utterances involves movement of articulators from the articulatory position of the initial vowel towards that of the oral stop closure, and then to that of the final vowel. As the closure segments have zero or low signal energy, linear predictive coding (LPC)-based estimation of vocal tract shape fails during stop closure. This paper reports a technique for estimation of place of articulation during stop closures by performing bivariate polynomial modeling on vocal tract area values during transition segments preceding and following the closure. The technique with second-degree polynomial modeling was found to be suitable for estimating the place of maximum constriction during stop closure segments of vowel-consonant-vowel utterances with bilabial, alveolar, and velar stops. The estimated places compared well with the actual constriction locations observed from the articulatory data. The technique may be useful for improving effectiveness of speech-training aids for production of stop consonants by providing visual feedback of the estimated place of articulation.
 
Publisher IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
 
Date 2011-08-01T02:27:32Z
2011-12-26T12:53:14Z
2011-12-27T05:40:28Z
2011-08-01T02:27:32Z
2011-12-26T12:53:14Z
2011-12-27T05:40:28Z
2009
 
Type Article
 
Identifier IEEE TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, 17(2), 277-286
1558-7916
http://dx.doi.org/10.1109/TASL.2008.2010285
http://dspace.library.iitb.ac.in/xmlui/handle/10054/8316
http://hdl.handle.net/10054/8316
 
Language en