A robust variational method for the acoustic-to-articulatory problem

Blaise Potard 1 Yves Laprie 1
1 PAROLE - Analysis, perception and recognition of speech
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : This paper presents a novel acoustic-to-articulatory inversion method based on an articulatory synthesizer and variational calculus, without the need for an initial trajectory. Validation in ideal conditions is performed to show the potential of the method, and the performances are compared to codebook based methods. We also investigate the precision of the articulatory trajectories found for various acoustic vectors dimensions. Possible extensions are discussed.
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Blaise Potard, Yves Laprie. A robust variational method for the acoustic-to-articulatory problem. 10th Annual Conference of the International Speech Communication Association - INTERSPEECH 2009, Sep 2009, Brighton, United Kingdom. ⟨inria-00433053⟩

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