Determination of articulatory parameters of the human vocal tract from acoustic measurements
W. Möller, Bishnu Saroop Atal, Manfred R. Schroeder · The Journal of the Acoustical Society of America · 1976
Previous work [B.S. Atal, J. Acoust. Soc. Am. 55, 384(A) (1974)] established that the articulatory parameters of a vocal tract model can be calculated from appropriate parameters of its acoustic output (such as linear predictor coefficients). The method is based on a “nonlinear” regression analysis involving both the acoustic parameters and their products. The weighting coefficients for the regression were determined in a “training session” in which the vocal tract assumed, successively, several thousand different configurations. The method is now being applied to human speech using x-ray data obtained by Fujimura, Miller, and Kiritani [J. Acoust. Soc. Am. 58, S40(A) (1975)]. Preliminary results on estimating the height of the velum will be reported.