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ITRW on Speech and EmotionSeptember 5-7, 2000 |
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ITRW on Speech and EmotionSeptember 5-7, 2000 |
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The amusement expression is obviously visual with smile and laugh: in a perceptive task, subjects could perceive visual and audio-visual stimuli of amused speech with the same performances [8]. Tartter [7] demonstrated that the acoustic consequences of the (mechanical) smile gesture are perceived as amusement expression. The hypothesis developed in this work is that the expression of amusement in speech is prosodically controlled: that is, the acoustic expression of the amusement emotion is not only a quality of voice changing but a controlled processing which owns to the prosody dimension. Some speech stimuli have been produced by French speakers following different tasks (spontaneously amused speech, acted amused speech, mechanical smiling…). In a previous experiment, [8] we have shown that the acoustic expression of amusement must not be reduced to an acoustic correlate of the smile: listeners can clearly discriminate the speech of a "mechanical smile" and the speech of a spontaneous smile. Moreover [13] a Mc Gurk paradigm applied to amused/mechanical stimuli clearly shows that prosody perturbs the visual decoding of amusement vs. mechanical (that is not emotional) speech. The stimuli have been then analyzed with a large set of parameters chosen following Tartter [7], Banse & Sherer [14] and Mozziconacci [1]. It was shown that some prosodic parameters (mainly intensity and F0 declination line) are used by speakers following different strategies.
Bibliographic reference. Aubergé, Véronique / Lemaître, Ludovic (2000): "The prosody of smile", In SpeechEmotion-2000, 122-126.