Investigação fonetico-acustico-perceptual dos sinais de pontuação enquanto marcadores prosodicos

AUTOR(ES)
DATA DE PUBLICAÇÃO

2003

RESUMO

This aim of this dissertation is to investigate the production and perception processes of the punctuation signs, PS (colon, exc1amation mark, interrogation mark, full stop, semi-colon, reticence, and comma) used in the writing system of Brazilian Portuguese. A phonetic instrumental analysis of the oral renderings of those graphic marks was carried out, based on reading samples of narrative texts. Three experiments were then run: the first experiment deals with the oral renditions of PSs. The second one, with the perception/representation of PSs, and the third one investigates the relationship between the perception/representation and the production of theses markers. The readings of the texts were done by six subjects (three of each sex), born and bred in São Paulo State, between 20 and 30 years old, 5 graduate and 1 undergraduate, with good reading habits and without problems of speech and/or audition. The recordings were made in a sound proof room, by means of digital tape recorder, and submitted to transcriptions based on the descriptive model by Halliday (1970) with adaptations by Cagliari (1982). Measures of duration of the stressed syllables, intensity and FO of the Tonal Groups (TGs) as well as pause measures between TGs were obtained. The PRATT software, version 4.015 was used for instrumental analysis. The data were submitted to Kolmogorov Smimov s test, data transformation (Square Root Transformation and Angular arcsen ?x/lOO Transformation), Comparison of Mean tests - t Test and Kruskal-Wallis -, ANOVA, Scott Knott separation of mean test, and Simple Lineal Regression. The results show that: a) the reading tasks were accomplished in such a way that it is possible to infer particular phonetic acoustic characteristics belonging to each one of the PSs; b) the listener, when hearing the reading of a text, is capab1e of noticing the melodic variations incited visually by the punctuation signs in the text-stimulus and of marking them by means of the traditional signs; c) a prosody memory seems to be activated during the reading of a text that was punctuated for the initial perception task. These experimental evidences support the hypothesis that the punctuation signs, apart from working as textual organizers, can also be understood as prosody markers, as suggested by Cagliari (1989)

ASSUNTO(S)

fonetica percepção pontuação phonetics punctuation perception

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