Université Aix-Marseille I
Session JEP poster P5 Jeudi 12 Juin - 10h30 12h30
La voyelle nasale en PB et son appendice nasal : étude acoustique et aérodynamique
- Beatriz Medeiros ( Université de São Paulo)
- Mariapaola D'imperio ( Université Aix-Marseille I)
- Robert Espesser ( Laboratoire Parole Langage – UMR 6057 CNRS)
- Résumé : This work investigates the acoustic variability of nasal vowel realization in Brazilian Portuguese caused by right-hand segmental context. Specifically, it appears that a discernible nasal murmur is measurable only when the nasal vowel precedes a plosive, but not before fricatives. According to an alternative hypothesis, there would be no difference between the nasal gestures in the two contexts. By means of both acoustic and aerodynamic data (nasal and oral airflow), a nasal appendix has been identified in both /p/ and /f/ contexts, which corresponds to the closing gesture of the lips and shows a high nasal airflow rate. Our alternative hypothesis is hence supported, while the acoustic difference is explained in terms of gestural overlap.