Third International Conference on Spoken Language Processing (ICSLP 94)

Yokohama, Japan
September 18-22, 1994

Automatic Estimation of Voice Source Parameters

Helmer Strik, Louis Boves

University of Nijmegen, Dept. of Language and Speech, Nijmegen, The Netherlands

Voice source parameters can be estimated by fitting a voice source model to the glottal flow signal which is obtained by means of inverse filtering. In this paper we investigate the behaviour of the LF-model in a number of non-linear parameter estimation procedures. It is concluded that (1) the parameter estimates are robust against additive (white and narrow band) noise in the flow waveforms, (2) simplex search algorithms perform better than steepest descent algorithms, provided that (3) the LF-pulse is generated with an algorithm that treats all parameters as real numbers.

Full Paper

Bibliographic reference.  Strik, Helmer / Boves, Louis (1994): "Automatic estimation of voice source parameters", In ICSLP-1994, 155-158.