Estimating area function of the vocal tract from formants using a sensitivity function and least-squares
نویسندگان
چکیده
منابع مشابه
Estimating the Vocal-Tract Area Function From Formants Using a Sensitivity Function and Least Square
We present a method for estimating the vocal-tract area function from specified formant frequencies. The method extends the work of Story (J.A.S.A., 119, 715-718, 1996) based on a sensitivity function representing the change in the formant frequency due to a small perturbation of the cross-sectional area of the vocal tract. Our method estimates the vocal-tract shape through an iterative procedu...
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The basic three-pararneter vocal tract area function model of Fant [2] has been extended to allow for asymmetry and variable length of the tongue hump section as well as variations of the VT overalllength. An important class of articulations are those that conform with this model, mostly vowel sounds and consonants wi~hout . apical . modification or a secondary posterior art1culatton. Starmg ou...
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This study looks at mappings between vocal tract area functions (obtained from MRI scans), vocal tract resonances, and speech formants for five New Zealand English (NZE) speakers. All eleven NZE monophthongs were investigated, for each speaker. Principal component (PC) analysis on the area functions of both the individual speakers and combined speaker set is performed. In all cases the first tw...
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We present a new method for estimating the vocal-tract area functions from speech signals. First, we point out and correct a long-standing sign error in some literature related to the derivation of the acoustic reflection coefficients of the vocal tract from a speech signal. Next, to eliminate the influence of the glottal wave on the estimation of the vocal-tract filter, we estimate the vocal-t...
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ژورنال
عنوان ژورنال: Acoustical Science and Technology
سال: 2013
ISSN: 1346-3969,1347-5177
DOI: 10.1250/ast.34.301