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Yves Laprie Directeur de Recherche CNRS
BP 239 Bureau C146 Tel:
+33 3 83 59 20 36 Fax:
+33 3 83 41 30 79 e-mail: Yves.Laprie [at] loria.fr
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I work on
acoustic-to-articulatory inversion of speech signals and speech analysis. I am
especially interested in the analysis-by-synthesis approach because I am
convinced that it also enables the speech production process to be better
understood. Together with Slim Ouni and Blaise Potard we proposed inversion algorithms guaranteeing a very good
closeness with original acoustic data together with realistic articulatory
gestures.
Since articulatory models play a central role in this
approach I developed software (Xarticul) to process old X-ray images and build models, which
approximate the vocal tract for vowels and consonants better than existing
models.
I am also interested in speech analysis and I am the main author of the WinSnoori
software http://www.winsnoori.fr which offers a variety of speech analysis algorithms
(pitch detection, automatic formant tracking, copy
synthesis for a parallel formant synthesizer). Tools derived from WinSnoori are now used in foreign language learning.
I am especially
interested in supervising PhD students or postdocs in the areas of articulatory
processing of speech.
PhD subject
proposed for 2012-2015 (deadline May 4, 2012): Acoustic-to-articulatory inversion
via an analysis by synthesis approach
Snorri and WinSnoori are speech research software aimed at assisting
researchers in the fields of speech recognition, phonetics, perception and
signal processing.

Xarticul,
software to process Xray images and other medical
images of the vocal tract.
Mathematical tools (Guide to Available Mathematical
Software): link
to http://gams.nist.gov/
Introduction
à l'analyse de la parole: Pdf
version
Introduction
à l'acoustique de la parole: Pdf
version
The famous blue book from IPS (Institut de Phonétique de Strasbourg) : Cinéradiographie des voyelles
et consonnes
du Français by A. Bothorel, P. Simon, F. Wioland and J.P. Zerling, 1986