A phonetic concatenative approach of labial coarticulation

Vincent Robert 1 Yves Laprie 1 Anne Bonneau 1, *
* Auteur correspondant
1 PAROLE - Analysis, perception and recognition of speech
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : Predicting the effects of labial coarticulation is an important aspect with a view to developing an artificial talking head. This paper describes a concatenation approach that uses sigmoids to represent the evolution of labial parameters. Labial parameters considered are lip aperture, protrusion, stretching and jaw aperture. A first formal algorithm determines the relevant transitions, i.e. those corresponding to phonemes imposing constraints on one of the labial parameters. Then relevant transitions are either retrieved or interpolated from a set of reference sigmoids which have been trained on a speaker specific corpus. This labial corpus is made up of isolated vowels, CV, VCV, VCCV and 100 sentences. A final stage consists in improving the overall syntagmatic consistency of the concatenation.
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Communication dans un congrès
INTERSPEECH 2007, Aug 2007, Antwerp, Belgium. pp.1402-1405, 2007
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Vincent Robert, Yves Laprie, Anne Bonneau. A phonetic concatenative approach of labial coarticulation. INTERSPEECH 2007, Aug 2007, Antwerp, Belgium. pp.1402-1405, 2007. 〈inria-00184252〉

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