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Evaluation of Speech Perturbation Features for Measuring Authenticity in Stress Expressions (CROSBI ID 237899)

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Dropuljić, Branimir ; Mršić, Leo ; Kopal, Robert ; Skansi, Sandro ; Brkić, Andrijana Evaluation of Speech Perturbation Features for Measuring Authenticity in Stress Expressions // Lecture notes in computer science, 10191 (2017), 1; 685-694

Podaci o odgovornosti

Dropuljić, Branimir ; Mršić, Leo ; Kopal, Robert ; Skansi, Sandro ; Brkić, Andrijana

engleski

Evaluation of Speech Perturbation Features for Measuring Authenticity in Stress Expressions

Expressions can vary by the authenticity level, i.e. the real amount of emotion present within the person when expressing it. They are often sincere, and thus authentic and natural ; the person expresses what he/she feels. But play- acted expressions are also present in our lives in a form of deception, movies, theater, etc. It was shown in the literature that those two type of expressions are often hard to distinguish. While some studies concluded that play-acted expressions are more intense, exaggerated or stereotypical than the natural ones, other authors failed to detect such a behavior. The goal of our analysis is to investigate whether speech perturbation features, i.e. jitter, shimmer, variance and features of disturbances in laryngeal muscle coordination, can be used as a robust measure for the analysis of the stress expression authenticity. Two subsets of the SUSAS database (Speech Under Simulated and Actual Stress) – the Roller-coaster subset and the Talking Styles Domain – are used for this purpose. It was shown that perturbation features in general show statistically significant difference between realistic and acted expressions, only the jitter features generally failed to discriminate these two type of expressions. The rising trend of perturbation feature values is observed from acted- to real-stress expressions.

speech perturbation features ; authenticity analysis ; emotional stress ; speech under stress

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Podaci o izdanju

10191 (1)

2017.

685-694

objavljeno

0302-9743

1611-3349

Povezanost rada

Elektrotehnika, Informacijske i komunikacijske znanosti, Računarstvo

Indeksiranost