Exploring the acoustic vowel space in two-year-old children: Results for Dutch and Hungarian

Stelt, J.M. van der; Zajdó, Krisztina; Wempe, T.G.

doi:10.1016/j.specom.2005.06.006

Cited by 4 publications

(1 citation statement)

References 17 publications

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“…It is known that in these cases reliability of formant frequency estimation decreases (van der Stelt et al, 2005). Partial discrepancy of the second and third formant frequency space should be analyzed in more detail.…”

Section: Resultsmentioning

confidence: 99%

10.5937/specedreh13-6038 = Maximal vowel space method in analysis of vowels in prelingual speech phase

Vojnović¹,

Bogavac²,

Jeličić-Dobrijević³

2014

Spec eduk i rehabilitacija

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e main problems in the analysis of vowels which occur in prelingual speech phase are centralization of utterance and unknown dimension of vocal tract. Most researches in this eld are based on the analysis of maximal vowel space (MVS) because discrimination of vowels is very di cult in this early period. MVS analysis includes the estimation of vocal tract (VT) physical dimensions. e aim of this research was to estimate and de ne changes in vowel pronunciation during prelingual speech phase. e analysis and voice recording were performed in a two month old child until he turned one. e recording was performed in 42 sessions, on average 4 sessions every month. Sound segments that look like vowel pronunciation were extracted from the recordings and were used for the formant frequencies estimation by PRAAT so ware. e Burg method was used for formant frequency estimation. Research results showed that MVS can be used in diagnostic procedure from a child's earliest age. MVS analysis is appropriate for a child's earliest age as a child needs to pronounce individual phonemes, and does not need to respond to speech stimuli. ese results need to be con rmed on a larger sample when extended analysis should de ne criteria for discrimination of typical and atypical formant frequencies.

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Section: Resultsmentioning

confidence: 99%

10.5937/specedreh13-6038 = Maximal vowel space method in analysis of vowels in prelingual speech phase

Vojnović¹,

Bogavac²,

Jeličić-Dobrijević³

2014

Spec eduk i rehabilitacija

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The Interpretation of Phonological Patterns in First Language Acquisition

Rose¹,

Inkelas²

2011

The Blackwell Companion to Phonology

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Since the seminal work of Jakobson (1941), phonological patterns observed in child language have been documented and analyzed from a number of perspectives. Throughout the relevant literature, an interesting paradox often manifests itself: while child language is generally characterized as a “simpler” version of the target language, many types of phonological patterns observed in acquisition data create challenges for theories developed to account for more “complex” adult systems. Phonologists within the generative framework have reacted to this problem in a number of ways, from tacitly or conspicuously ignoring acquisition data (e.g. Chomsky and Halle 1968: 331) to elaborating phonological models that account for phenomena observed in child phonology (e.g. Smith 1973; Bernhardt and Stemberger 1998) or, in some extreme cases, rejecting the validity of evidence from child production data for theoretical investigations of phonology (e.g. Hale and Reiss 1998). The disconnect between findings from child phonology and generalizations arising out of generative theories of grammar based on adult phonology has also been recruited in support of alternative, functionalist approaches to child phonology, including Stampe (1969) within Natural Phonology and, more recently, Vihman and Croft (2007) within Construction Grammar.

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Comparing deaf and hearing Dutch infants: Changes in the vowel space in the first 2 years

Stelt

Wempe

Pols

2008

Clinical Linguistics & Phonetics

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The influence of the mother tongue on vowel productions in infancy is different for deaf and hearing babies. Audio material of five hearing and five deaf infants acquiring Dutch was collected monthly from month 5-18, and at 24 months. Fifty unlabelled utterances were digitized for each recording. This study focused on developmental paths in vowel productions. The applied automated band filtering analysis is F0-independent and results in a spectral envelope, sampled in a 40-dimensional space. Via a Principal Component Analysis (PCA, data reduction), a vowel space for normally hearing 2-year-olds was constructed, enabling the projection of the individual developmental data of the infants in a two-dimensional reference plane. Comparison of the results for the hearing and the deaf infants over 2 years indicates individual as well as group differences. The amount of hearing loss as well as the communication styles seem to be important factors in explaining differences between the infant categories.

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Exploring the acoustic vowel space in two-year-old children: Results for Dutch and Hungarian

Cited by 4 publications

References 17 publications

10.5937/specedreh13-6038 = Maximal vowel space method in analysis of vowels in prelingual speech phase

10.5937/specedreh13-6038 = Maximal vowel space method in analysis of vowels in prelingual speech phase

The Interpretation of Phonological Patterns in First Language Acquisition

Comparing deaf and hearing Dutch infants: Changes in the vowel space in the first 2 years

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