Title :
Formant tracking with quasilinearization
Author_Institution :
Dept. of Adv. Inf., Fraunhofer Inst., Stuttgart, West Germany
Abstract :
An algorithm for the calculation of formant tracks from a speech signal is presented. It is based on the method of quasilinearization, a nonlinear parameter estimation procedure. What distinguishes this method from the most other methods is the fact that the formants are directly calculated from the speech signal, using a nonlinear model for the speech production that is based on formants and LPC parameters (FLPC model). Since quasilinearization is a nonrecursive parameter estimation method, this procedure is also much faster than nonlinear estimation algorithms for formant tracking which are based on extended Kalman filters
Keywords :
parameter estimation; speech analysis and processing; LPC parameters; formant tracking; nonlinear parameter estimation; quasilinearization; speech signal; Bandwidth; Communications technology; Filtering; Kalman filters; Linear predictive coding; Parameter estimation; Spectrogram; Speech; Trajectory; Transfer functions;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on
Conference_Location :
New York, NY
DOI :
10.1109/ICASSP.1988.197267