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Noelia DO CARMO BLANCO

IE2 Temporaire sur CDD -  UNS

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pour "Noelia DO CARMO BLANCO" :

titre
Phoneme Resistance and Phoneme Confusion in Noise: Impact of Dyslexia
auteur
Noelia Do Carmo Blanco, Michel Hoen, Fanny Meunier, Julien Meyer
article
InterSpeech 2018, Sep 2018, Hyderabad, India. 2018, 2018, Proceedings Interspeech. 〈http://interspeech2018.org/〉
annee_publi
2018
resume
Understanding speech in noisy environments is a challenge for almost everyone and particularly so for people with dyslexia. To better understand the phonological processing deficit, which has been posited as a core trait of dyslexia, we wanted to further characterize the impact of noise on speech perception. In this paper, we investigated phoneme resistance to noise for dyslexic and control adults and explored the pattern of errors produced by noise interference. Our aim was to examine differences between phoneme confusion matrices of the two populations. Disyllabic nouns were embedded in noise and participants had to perform an auditory word identification task. Error rates, phoneme resistance and phoneme confusions were compared between a dyslexic and a group of matched controls. Error rate was higher in the dyslexic group. However, no qualitative differences in the profile of errors were found. The coronals /ʃ and s/ were the most resistant phoneme in both groups while the labials /f, m and v/ were the most vulnerable. Although dyslexics showed a more scattered pattern of confusions, the matrices were correlated. Our results confirm a phonological deficit in dyslexia whereas they do not support the hypothesis of qualitative differences in phonological representation between the two groups.
typdoc
Communication dans un congrès
Accès au texte intégral et bibtex
https://hal.archives-ouvertes.fr/hal-01860442/file/DoCarmoBlanco%20et%20al.pdf BibTex
titre
Loud and Shouted Speech Perception at Variable Distances in a Forest
auteur
Julien Meyer, Fanny Meunier, Laure Dentel, Noelia Do Carmo Blanco, Frédéric Sèbe
article
Interspeech, Sep 2018, Hyderabad, India
annee_publi
2018
resume
To increase the range of modal speech in natural ambient noise, individuals increase their vocal effort and may pass into the 'shouted speech' register. To date, most studies concerning the influence of distance on spoken communication in outdoor natural environments have focused on the 'productive side' of the human ability to tacitly adjust vocal output to compensate for acoustic losses due to sound propagation. Our study takes a slightly different path as it is based on an adaptive speech production/perception experiment. The setting was an outdoor natural reverberant soundscape (a plane forest in altitude). The stimuli were produced live during the interaction: each speaker adapted speech to transmit French disyllabic words in isolation to an interlocutor/listener who was situated at variable distances in the course of the experiment (30m, 60m, 90m). Speech recognition was explored by evaluating the ability of 16 normal-hearing French listeners to recognize these words and their constituent vowels and consonants. Results showed that in such conditions, speech adaptation was rather efficient as word recognition remained around 95% at 30m, 85% at 60m and 75% at 90m. We also observed striking differences in patterns of answers along several lines: different distances, speech registers, vowels and consonants.
typdoc
Communication dans un congrès
Accès au texte intégral et bibtex
https://hal.archives-ouvertes.fr/hal-01860577/file/Meyer%20et%20al%202018.pdf BibTex
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