Contraintes globales pour la sélection des unités en synthèse vocale
Adrian Popescu, Cédric Boidin, Didier Cadic.
This work proposes an alternative unit selection method for corpus-based voice synthesis. It introduces the need of long term constraints in the cost function, which cannot be handled by the traditional Viterbi algorithm. Therefore another optimization algorithm, the simulated annealing, has been chosen for our experiments. It has been evaluated on a cost function encouraging long term F0 continuity. Although the results of our experiments do not show real improvement of the overall quality, they involve further research on this relevant issue.