Is intensity a relevant criterion in the perception of spontaneous speech? The case of emphasis in English.

Abstract : Analysing intensity in spontaneous speech is most delicate. However, for reasons that will be given in detail, this paper shows that the measurements seem relevant and that it is therefore possible to consider intensity as a key factor in acoustic studies on oral spontaneous speech. Minute analyses are thus carried out on a corpus of English spontaneous speech and described here, and the statistical analyses on the whole corpus show that fundamental frequency is not the most important acoustic correlate of emphasis, as is widely agreed in the literature, but that the combination of intensity and duration is the most relevant cue for emphasis. This parameter is called total amplitude, i.e. the energy spent to utter a segment of speech. The statistical analysis carried out for each speaker and for the different speech styles also points out that different parameters are important in the perception of emphasis in spontaneous speech and for some speakers, intensity is the most relevant criterion, whether it be very high, or very low.
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Sophie Herment. Is intensity a relevant criterion in the perception of spontaneous speech? The case of emphasis in English.. 2012. ⟨hal-01489663⟩

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