Yves Laprie Directeur de Recherche CNRS Equipe Parole Laboratoire lorrain de recherche en informatique et ses applications BP 239 F54506. Vandœuvre-lèsNancy Cedex Bureau C146 Tel: +33 3 83 59 20 36 Fax: +33 3 83 41 30 79 e-mail: Yves.Laprie [at] loria.fr

Research interests

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. These tools also enable articulatory copy synthesis.

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.

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Postdoc position for 2013-2014 (deadline June 11, 2013): Acoustic to articulatory mapping of fricative sounds

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PhD subject proposed for 2013-2016 (deadline May 4, 2013): Acoustic-to-articulatory inversion via an analysis by synthesis approach

PhD subject proposed for 2013-2016 (deadline May 4, 2013): Articulatory synthesis of speech

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ASPI project

Snorri and WinSnoori

Snorri and WinSnoori are  speech research software aimed at assisting researchers in the fields of speech recognition, phonetics, perception and signal processing.

WinSnoori 1.34 (XP, Seven)

• A short description of Snorri: Postscript Pdf
• A guided tour of Snorri

Xarticul, software to process Xray images and other medical images of the vocal tract.

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Miscellaneous

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

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MRI (/oe/)

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