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Acoustic versus contextual factors in stop voicing perception in spontaneous French

Examined French stop consonants pronounced spontaneously during a conversation using a total of 63 Ss (aged 14-50 yrs). In Exp 1 an acoustic analysis of spontaneous productions confirmed the high reliability of voice timing cues but also showed that they can be misleading. Exp 2, where Ss identified stops contained in excerpts from the conversation, confirmed the major part played by voice timing in the perception of voicing. It also suggests that the reliability of the voice timing cues is not optimally exploited by the perceptual system. Exp 3, in which Ss wrote the contents of excerpts varying in duration, demonstrated that supplementary information that allows correct identification in the frame of the conversation is provided by top-down processes. These experiments also suggest that secondary acoustic cues play a decisive part in the case of conflict between voice timing cues and top-down information. (PsycINFO Database Record (c) 2005 APA, all rights reserved)



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