Erratum: Improved sequential linear prediction by selective time-domain coefficient extraction
G.J. Freij, Barry M.G. Cheetham · Electronics Letters · 1986
For voiced speech, LPC coefficients obtained from sequential adaptation techniques are maximally perturbed roughly at the instant of glottal closure. Coefficient extraction at or immediately beyond this instant results in a poor vocal tract model estimate. A method is described to enhance the accuracy of the estimate by selecting coefficient vectors based on their time-domain convergence.