from 1984 : Research fellow from Centre National de la Recherche Scientifique (CNRS) at ICP, Grenoble - France.
1983-84 : Research assitant from Institut National de la Recherche Scientifique (INRS) at the Kungliga Tekniska Hogskolan, Speech Communication Department, Stockholm, Sweden).
1983 : Doctorate in Electronics from the Institut National Polytechnique de Grenoble (INPG).
1979 : Engineering Diploma in Electronics from the Ecole
Nationale Supérieure d'Electronique et de
Radioélectricité in Grenoble (ENSERG).