João Antonio de Moraes holds a degree in Letters from Universidade do Estado da Guanabara (1975), and a medical doctor degree from the Universidade Federal do Rio de Janeiro (1976); a master's degree in Dialectology - Université de Paris III (Sorbonne-Nouvelle) (1979) and a PhD in Phonétique Instrumentale et-Fonctionnelle - University of Paris III (Sorbonne-Nouvelle) (1984). He is Professor Titular of the Departmento de Letras Vernáculas of the Faculdade de Letras da Universidade Federal do Rio de Janeiro and resercher at CNPq; his research area is Portuguese Linguistics, with an emphasis on Acoustic Phonetics, especially in the fields of intonation, prosody, nasality, experimental phonology.