Une mesure d'intelligibilité par décodage acoustico-phonétique de pseudo-mots dans le cas de parole atypique

Abstract : ABSTRACT A measure of intelligibility by acoustic-phonetic decoding of pseudo-words in the case of atypical speech The current intelligibility tests performed on speakers with atypical speech production are limited by the ability of listeners to restore distorted sequences. The result is an overvalued measure compared to the actual articulatory performance. We present an intelligibility test based on the pronunciation of pseudo-words in order to neutralize unwanted lexical and learning effects of items by the listeners. 126 speakers (41 healthy subjects and 85 patients) each produced 52 pseudo-words randomly drawn from a list of 89346 possible forms. 40 listeners have transcribed these productions. Orthographic transcriptions were phonetized and compared to the phonetic forms expected by a Wagner-Fischer algorithm that integrates the phenomena of insertion, elision and phoneme substitution. The results show that the forms perceived with patients are on average at a greater distance than with healthy subjects.
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Alain Ghio, Muriel Lalain, Laurence Giusti, Gilles Pouchoulin, Danièle Robert, et al.. Une mesure d'intelligibilité par décodage acoustico-phonétique de pseudo-mots dans le cas de parole atypique. XXXIIe Journées d'Etudes sur la Parole, LPL, 2018, Aix-en-Provence, France. pp.285-293, ⟨10.21437/jep.2018-33⟩. ⟨hal-01770161v2⟩

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