Title :
Glottal source models for speech coding and synthesis
Author :
Krishnamurthy, Ashok K.
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
An algorithm for simultaneously estimating the parameters of a glottal source model and the vocal tract filter is described. The five-parameter LF model is used for the glottal source, and the vocal tract filter is modeled as all-pole. The model parameters are assumed to be different in closed and open glottal phases to allow for the additional damping of the formants in the open phase. The analysis of steady vowel sounds from four speakers shows that the analysis method leads to an accurate estimate of accurate estimate of the glottal source waveform and the vocal tract formants
Keywords :
encoding; filtering and prediction theory; speech analysis and processing; speech synthesis; all-pole filter; closed glottal phases; damping; five-parameter LF model; formants; glottal source model; glottal source waveform; open glottal phases; speech coding; steady vowel sounds; vocal tract filter; Damping; Ear; Filters; Impedance; Linear predictive coding; Loudspeakers; Signal synthesis; Speech analysis; Speech coding; Speech synthesis;
Conference_Titel :
Circuits and Systems, 1989., Proceedings of the 32nd Midwest Symposium on
Conference_Location :
Champaign, IL
DOI :
10.1109/MWSCAS.1989.101802
