Analysis of voice source characteristics using a constrained polynomial representation of voice source signals

To analyze the characteristics of voice source signals from speech, a model is presented in the form of polynomial function by expanding the definition of the Rosenberg model. In combination with the all-pole assumption of the vocal-tract filter, methods are described for the pitch-synchronous speec...

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Bibliographic Details
Published inThe Journal of the Acoustical Society of America Vol. 121; no. 2; p. 745
Main Authors Kaburagi, Tokihiko, Kawai, Kouji, Abe, Shinya
Format Journal Article
LanguageEnglish
Published United States 01.02.2007
Subjects
Electrodiagnosis - instrumentation
Filtration
Glottis - physiology
Humans
Linear Models
Models, Statistical
Phonetics
Signal Processing, Computer-Assisted - instrumentation
Software
Sound Localization - physiology
Sound Spectrography - instrumentation
Speech Acoustics
Speech Perception - physiology
Speech Production Measurement - instrumentation
Voice Quality - physiology
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Summary:To analyze the characteristics of voice source signals from speech, a model is presented in the form of polynomial function by expanding the definition of the Rosenberg model. In combination with the all-pole assumption of the vocal-tract filter, methods are described for the pitch-synchronous speech analysis and temporal search of the glottal opening and closing instants. Because the source and filter models are both linear, the parameter estimation problem can be conveniently solved. In addition, the temporal search method can refine the locations of the glottal events and improve the accuracy of the parameter estimation. Analyses of non-nasalized voiced speech are conducted using an electroglottographic device from which the initial estimate of the temporal information is given.
ISSN:0001-4966
DOI:10.1121/1.2359234