A AQUISIÇÃO DO CONTRASTE ENTRE /t/ E /k/ SOB A ÓTICA DINÂMICA

Berti, Larissa Cristina; Ferreira-Gonçalves, Giovana

doi:10.5380/rabl.v11i1.32465

Cited by 6 publications

(8 citation statements)

References 7 publications

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“…Even the data referring to the children with typical acquisition did not present differences between the stop segments by the means of both parameters, differently from the results found in a study that had investigated this contrast in a typical adult of BP (16) . This fact reinforces the proposition of use of, at least, one parameter related to the main characteristics of such instrument, with a satisfying magnitude, it would be fundamental to offer an auditory distinction between distinct consonants (13) .…”

Section: Discussioncontrasting

confidence: 52%

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Parâmetros acústicos e articulatórios durante a produção do contraste entre oclusivas alveolares e velares: dados típicos e de desvio fonológico

Melo

Mota

Berti

2017

Audiol., Commun. Res.

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Introduction: Speech instrumental analysis, such as acoustic and articulatory (e.g. ultrasound tongue images) may identify speakers' undetected linguistic skills through auditory perceptual analysis. Purpose: To compare the acoustic and articulatory parameters between alveolar and velar stops and between children with typical speech development and children with phonological disorders. Methods: The sample consisted of fifteen children with typical speech development and seven children with phonological disorders. The corpus was organized through the target-words: /'kap/, /'tap/, /'galo/ and /'da/, into carrier phrase and spontaneously named. Simultaneous audio and video (tongue ultrasound images) recording were performed. The data was analyzed in acoustic and articulatory ways. Results: Six (spectral peak, centroid, variance, skewness, kurtosis and consonant-vowel transition) of the nine acoustic parameters investigated did not demonstrate any distinctions between children with and without speech alterations. Only spectral peak and consonant-vowel transition values were not significant for differentiating the target contrast. In relation to the ultrasound data, the proportion of significant axes of the tongue's anterior and posterior region showed some significant variations in the typical group, different from the group with phonological disorders. The tongue curves also evidenced particularities between the groups. Conclusion: The acoustic and articulatory parameters provided evidence about the phonic contrast between alveolar and velar stops in the studied sample. It was observed an articulatory refining of children with typical speech development and the presence of covert contrast in the speech of children with phonological disorders.

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Section: Discussioncontrasting

confidence: 52%

“…The extraction of these parameters was done manually, following the procedures described in other studies (1,13,16,17,18,19) . For the articulatory analysis of the ultrasound data, moments corresponding to the production of each segment analyzed…”

Section: Methodsmentioning

confidence: 99%

Parâmetros acústicos e articulatórios durante a produção do contraste entre oclusivas alveolares e velares: dados típicos e de desvio fonológico

Melo

Mota

Berti

2017

Audiol., Commun. Res.

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“…As for the theoretical implications for the field of Laboratory Phonology, besides providing additional evidence to the gradient status of speech, be it in the L1 (Albano 2001;Albano 2012;Albano 2017;Berti & Ferreira-Gonçalves 2012;Meneses & Albano 2015) or in the L2 (Alves 2018a;Alves et al 2018;Silva 2014;Zimmer & Alves 2012), the study reinforces the combined action of different cues in the identification of phonological distinctions. Given this gradient status, it is important to discuss whether the current perceptual models prove adequate to account for our data.…”

Section: Implications For Laboratory Phonologysupporting

confidence: 59%

Listening to accented speech in Brazilian Portuguese: On the role of fricative voicing and vowel duration in the identification of /s/ – /z/ minimal pairs produced by speakers of L1 Spanish

Alves

Brisolara

2020

Journal of Portuguese Linguistics

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This article reports the results of two experiments investigating the combined role of vowel length and length of fricative voicing in the identification, by Brazilians, of minimal pairs such as casa /z/-caça /s/ produced by speakers of Spanish (L1). In Experiment 1, stimuli were manipulated so that length of voicing in the fricative was tested in two levels (100% or 0% of voicing) and vowel length was tested in four levels (25%, 50%, 75% and 100% of the length of the total vowel). In Experiment 2, voicing length was tested in three levels (25%, 50% and 75% of voicing), combined with the four levels of vowel length (25%, 50%, 75% and 100% of the length of the total vowel). Both experiments were run on TP Software (Rauber et al. 2012), and forty Brazilian listeners with no experience with Spanish took part in both tasks. The results show an interaction between the two cues, especially in the stimuli with no full voicing in the fricative. These findings provide additional evidence to the gradient status of speech in production and perceptual phenomena (Albano 2001; Albano 2012; Perozzo 2017), besides shedding light on the teaching of Brazilian Portuguese as an Additional Language.

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“…The gestures might belong to the same oral subsystem and also involve the same tract variables (6) . The hypothesis that the rhotic and the lateral are constituted by two gestures is based on the phonetic similarity between these segments and the processes that they share (1) .…”

Section: Discussionmentioning

confidence: 99%

“…Software capable of synchronizing sound and articulation signs, made the research in the area possible. However, the incorporation of data of articulatory nature from the ultrasound data in light of a dynamic model of speech production is a recent practice in Brazil (6) . Ultrasound also offers advantages such as not having risks to health and being relatively inexpensive when compared to other imaging methods.…”

Section: Introductionmentioning

confidence: 99%