Third ESCA/COCOSDA Workshop on Speech Synthesis
November 26-29, 1998
ABSTRACT This paper examines whether observed phenomena in energy declination can be used to improve the naturalness of synthetic speech. In two production experiments different aspects of intensity fall-off within utterances are analysed including degree of stress, phrase length, phrase boundaries. Energy manipulation was carried out using diphone synthesis as a basis for generating stimuli for perception tests in English and Danish. The results of the listening experiments, in which different versions of a paragraph were ranked for naturalness indicate that amplitude differences can contribute to greater naturalness. However, it is apparent that fine-tuning of amplitude requires good quality synthesis at the more basic prosodic levels.
Bibliographic reference. Trouvain, Jürgen / Barry, William J. / Nielsen, Claus / Andersen, Ove (1998): "Implications of Energy Declination for Speech Synthesis", In SSW3-1998, 47-52.