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The Acoustics of Pleasantness in Poetry Declamation in Two Varieties of Portuguese

This work investigates the link between a poem declamation and the sensation of pleasantness in two varieties of Portuguese: European and Brazilian Portuguese. A group of ten Brazilian and ten Portuguese reciters had their performances evaluated by a group of ten Brazilian and ten Portuguese listeners invited to judge the degree of pleasantness. The perceptual evaluation was done in two ways: ﬁrst, the listeners of the respective linguistic community carried out a Likert-scale test to attribute a degree from “very unpleasant” to “very pleasant” in ﬁve steps for the declamations of Alberto Caeiro’s poem “Quando vier a primavera”. Then, the listeners of the two varieties together carried out a discriminant test to point which one of two declamations of the same chunk from the poem was more pleasant. Both reciters and listeners were balanced in gender. A set of 22 prosodic-acoustic parameters was extracted from the verses and taken as predictors in logistic regression and Linear Discriminant Analysis models for explaining the perceptual evaluations. Results point to pause duration and rate, articulation rate, rate of F0 falls, spectral emphasis and LTAS slope as the most relevant predictors of pleasantness. Implications for an acoustic of pleasantness are discussed.