P. A. Barbosa obtained his PhD degree in 1994 from the INP de Grenoble in France and his tenure in 2006 from the State University of Campinas, where he is an Full Professor at the Dep. of Linguistics. He is the head of the Speech Prosody Studies Group and Forensic Phonetics Lab in the same department and his interests are direct to experimental prosody, acoustic phonetics, speech rhythm, dynamical systems theory, speech pathology analysis, and L2/FL phonetics. He is an Editor of the Journal of Speech Sciences. He has more than 170 publications including five books on prosody, acoustics phonetics and speech rhythm.