Obtaining the vocal-tract area function from the vowel sound
Keywords:Acoustic impedance, Acoustic wave reflection, Boundary conditions, Computer simulation, Magnetic resonance imaging, Speech recognition, Transfer functions, X rays, Vocal tract area function, Vocal tract filter, Vowel sound
AbstractAccurate estimation of the vocal-tract area function (VTAF) requires the vocal-tract filter (VTF) estimated from a vowel signal should not contain the influence of the glottal wave, and the influence of the non-ideal glottal and lip boundary conditions. The method for eliminating the influence of the glottal wave on the VTF estimation from a vowel sound signal is developed. This paper investigates the effect of non-ideal glottal and lip boundary conditions on the estimation of the VTAF.
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