After completing his Ph.D. at the École National Supérieure des Telecommunications (Telecom Paris) in 1996, he joined AT&T Labs Research, NJ, where he worked on Next Generation TTS and on speech coders. From February 2001 until February 2002, he was a Member of Technical Staff of Language Modelling and Research Department at Bell Labs, Murray Hill, NJ. His current interests are in various aspects of speech analysis for speech synthesis and coding.