Abstract
Several studies use idealized, fluent utterances to comprehend spoken language. Disfluencies are often regarded to be just a noise in the speech flow. Other works argue that fragmented structures (disfluencies, silent and filled pauses) are important and can help better understanding. By extending the original concept of speech disfluency, the current paper involves the acoustic level and places the discontinuity of F0 in parallel with speech disfluencies. An exhaustive analysis of the advantages and disadvantages of using a continuous F0 estimate in prosodic event detection tasks is performed for formal and informal speaking styles. Results suggest that unlike in read (formal) speech, using a continuous, overall interpolated F0 curve is counterproductive in spontaneous (informal) speech. Comparing the behaviour of speech disfluencies and the effect of discontinuity of the F0 contour, results raise more general modelling philosophy considerations, as they suggest that disfluencies in informal speech may be by themselves informative entities, reflected also in the acoustic level organization of speech, which suggests that disfluencies in general are an important perceptual cue in human speech understanding.
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Szaszák, G., Beke, A. (2015). Toward Exploring the Role of Disfluencies from an Acoustic Point of View: A New Aspect of (Dis)continuous Speech Prosody Modelling. In: Král, P., Matoušek, V. (eds) Text, Speech, and Dialogue. TSD 2015. Lecture Notes in Computer Science(), vol 9302. Springer, Cham. https://doi.org/10.1007/978-3-319-24033-6_42
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DOI: https://doi.org/10.1007/978-3-319-24033-6_42
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