Speech Prosody 2004

Nara, Japan
March 23-26, 2004

Unifying Stress Shift and Secondary Stress Phenomena with a Dynamical Systems Rhythm Rule

Plínio A. Barbosa, P. Arantes, L. S. Silveira

LAFAPE, Instituto de Estudos da Linguagem, Unicamp, Brazil

Rhythmic patterns related to Brazilian Portuguese adjacent stresses and secondary stress were investigated under a dynamical systems perspective. Paired utterances contrasting alleged stress clash vs non clash reveal a duration pattern difference in the opposite direction of the Rhythm Rule: the closer a syllable-sized unit is to phrase stress, the longer its duration. Polysyllabic words may exhibit initial lengthening as a possible indication of an initial secondary stress. The two phenomena are simulated by using the same parameters with the coupled-oscillators model of speech rhythm production.

Full Paper

Bibliographic reference.  Barbosa, Plínio A. / Arantes, P. / Silveira, L. S. (2004): "Unifying stress shift and secondary stress phenomena with a dynamical systems rhythm rule", In SP-2004, 49-52.