First International Conference on Spoken Language Processing (ICSLP 90)

Kobe, Japan
November 18-22, 1990

Optimum Spectral Peak Track Interpretation in Terms of Formants

Yves Laprie

CRIN/INRIA, BP329, Vandceuvre-les-Nancy, France

An original approach to interpret spectral peak tracks in terms of formants is described. That enables to process results of algorithms which extract peak tracks rather than formant tracks. Our approach relies on the following optimality criterion: the best track combination for formant interpretation is the one which explains more energy in terms of formants than any other combination and which satisfies constraints placed upon formants (Fl F2 and F2 F3 compatibility). The algorithm is made up of two distinct steps: - a local formant interpretation in order to determine at each instant the best interpretation, - a global formant interpretation guided by results of the preceding step. The assessment of the global interpretation enables to choose the best formant tracking parameters.

Full Paper

Bibliographic reference.  Laprie, Yves (1990): "Optimum spectral peak track interpretation in terms of formants", In ICSLP-1990, 1261-1264.