On modelling the dynamics of speech patterns
Mahesan Niranjan, F. Fallside · 1987
Short term spectral analysis or source-filter modelling gives a parameterised description of the acoustic signal in terms of a sequence of vectors.These parameter vectors change slowly with time corresponding to a slowly moving vocal tract.This paper deals with modelling the time variation by a set of target vectors and interpolation functions that overlap in time; temporal decomposition (Atal, 1983).We present a simple geometric interpretation of the approach and discuss it in relation to hidden Markov modelling.