15th International Congress of Phonetic Sciences (ICPhS-15)

Barcelona, Spain
August 3-9, 2003

Predicting Segmental Durations for Basque Using CARTs

Eva Navas, Inmaculada Hernáez, Juan Maria Sánchez

University of the Basque Country, Spain

Appropriate prosody modeling is crucial for natural sounding text to speech synthesis, and accurate estimation of segmental durations greatly contributes to this naturalness, not only by establishing phone durations, but also because of the dependency of the intonation models on those estimated durations.
   This paper presents the modeling of segmental durations performed for standard Basque using binary regression trees and describes the experiments and results obtained when using different predicting factors, as well as when testing several target variables and phone groupings. Additionally, a subjective evaluation of the duration model has been performed and is described together with the final results.

Full Paper

Bibliographic reference.  Navas, Eva / Hernáez, Inmaculada / Sánchez, Juan Maria (2003): "Predicting segmental durations for Basque using CARTs", In ICPhS-15, 2083-2086.