Speech Perception:. Theoretical approaches. Scope of the problem. Speech perception involves the mapping of speech acoustic signals onto linguistic messages (e.g., phonemes, distinctive features, syllables, words, phrases…). Why is the problem theoretically hard to solve?.
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…“the candidate signal descriptions are computed by an analogue of the production process—an internal, innately specified vocal-tract synthesizer…—that incorporates complete information about the anatomical and physiological characteristics of the vocal tract and also about the articulatory and acoustic consequences of linguistically significant gestures” (Liberman & Mattingly, 1985, p. 26).
50 msTone onset time (TOT): a nonspeech analog of Voice onset time (VOT) (Pisoni, 1977; Holt, Lotto, & Diehl, 2004)