First International Conference on Spoken Language Processing (ICSLP 90)

Kobe, Japan
November 18-22, 1990

A Geometrical Argument for Imposing an Additional Constraint on Temporal Decomposition

P. J. Dix, Gerrit Bloothooft, E. J. M. van Mierlo

Research Institute for Language and Speech, University of Utrecht, The Netherlands

Temporal decomposition (TD), an analysis procedure introduced by Atal in 1983, yields a linear approximation of speech parameters in terms of a series of time-overlapping interpolation functions and an associated series of data vectors. Essentially, TD is based on a linear model of the effects of coarticulation, the coarticulation effects being modelled by the overlap of neighboring interpolation functions. This method does not make use of any specific phonetic knowledge and can be applied to any time-sequence of data vectors. In this paper we will discuss some of the constraints which must be imposed on such a linear approximation and describe a new and improved method for constructing the interpolation functions.

Full Paper

Bibliographic reference.  Dix, P. J. / Bloothooft, Gerrit / Mierlo, E. J. M. van (1990): "A geometrical argument for imposing an additional constraint on temporal decomposition", In ICSLP-1990, 41-44.