Estimation of the dynamics of vocal tract parameters
Harald Höge · 2005
The dynamics of the vocal tract are modelled by a perturbation, which changes randomly the area function of the vocal tract. Wakita's method establishes a correspondence between the perturbation of the area function and a perturbation of the prediction coefficients. A Kalman filter extracts continuously the estimates of the prediction coefficients using the structure of the perturbation of the area coefficients.