ITRW on Non-Linear Speech Processing (NOLISP 03) May 20-23, 2003 Le Croisic, France

HARTFEX: A Multi-Dimentional System of HMM Based Recognisers for Articulatory Features Extraction

Tarek Abu-Amer, Julie Carson-Berndsen

University College Dublin, Ireland

HARTFEX is a novel system that employs several tiers of HMMs recognisers that work in parallel to extract multidimentions of articulatory features. The features segments on the different tiers overlap to account for the coarticulation phenomena. The overlap and precedence relation among features are applied to a phonological parser for further processing. HARTFEX system is built on a modified version of HTK toolkit that allows it to perform multi-thread multi-feature recognition. The system testing results are highly promising. The recognition accuracy for vowel is 98% and for rhotic is 93%. Current work investigates inherited interdependencies of extracting different feature sets.

Full Paper

Bibliographic reference.  Abu-Amer, Tarek / Carson-Berndsen, Julie (2003): "HARTFEX: a multi-dimentional system of HMM based recognisers for articulatory features extraction", In NOLISP-2003, paper 009.