Acoustic-prosodic measures discriminate the emotions of Brazilian portuguese speakers
Alexandra Christine de Aguiar, Ana Carolina Constantini, Ronei Marcos de Moraes, Anna Alice Almeida, Alexandra Christine de Aguiar, Ana Carolina Constantini, Ronei Marcos de Moraes, Anna Alice Almeida

TL;DR
This study shows that acoustic-prosodic features like speech duration and pitch can distinguish different emotions in Brazilian Portuguese speakers.
Contribution
The study identifies specific acoustic-prosodic patterns for each emotion in Brazilian Portuguese speech.
Findings
Disgust had the highest speech duration, while joy showed faster speech and higher intensity.
Fear and sadness had lower intensity and pitch, with fear showing minimal segment elongation.
Surprise had the highest pitch, and anger had the highest vocal intensity.
Abstract
To verify if there is a difference in acoustic-prosodic measures in different emotional states of speakers of Brazilian Portuguese (BP). The data sample consisted of 182 audio signals produced by actors (professionals or students), from the semi-spontaneous speech task “Look at the blue plane” in the various emotions (joy, sadness, fear, anger, surprise, disgust) and neutral emission. Values were extracted from acoustic-prosodic measures of duration, fundamental frequency and intensity of the various emotions. The Friedman comparison test was used to verify whether these measures are able to discriminate emotions. The prosodic-acoustic analysis revealed significant variations between emotions. The disgust emotion stood out for having the highest rate of utterance, with higher values of duration. In contrast, the joy exhibited a more accelerated speech, with lower values of duration…
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Taxonomy
TopicsEmotion and Mood Recognition · Multisensory perception and integration · Phonetics and Phonology Research
