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Temporal dynamics of lateral channel formation in /l/: 3D EMA data from Australian English

Ying, J; Carignan, C; Shaw, JA; Proctor, M; Derrick, D; Best, CT; (2017) Temporal dynamics of lateral channel formation in /l/: 3D EMA data from Australian English. In: Lacerda, F, (ed.) Proceedings of INTERSPEECH 2017. (pp. pp. 2978-2982). ISCA (International Speech Communication Association): Stockholm, Sweden. Green open access

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Abstract

This study investigated the dynamics of lateral channel formation of /l/ in Australian-accented English (AusE) using 3D electromagnetic articulography (EMA). Coils were placed on the tongue both mid-sagitally and para-sagitally. We varied the vowel precedi /l/ between /I/ and /æ/ /a.g, filbert vs. talbot, and the syllable position of /l/, e.g., /'tæl.b-t/ vs. /tæb.l-t/. The articulatory analyses of lateral /l/ show that: (1) the mid-sagittal delay (from the tongue tip gesture to the tongue middle/tongue back gesture) changes across different syllable positions and vowel contexts; (2) the para-sagittal lateralization duration remains the same across syllable positions and vowel contexts; (3) the lateral formation reaches its peak earlier than the mid-sagittal gesture peak; (4) the magnitude of tongue asymmetrical lateralization is greater than the magnitude of tongue curvature in the coronal plane. We discuss these results in light of the temporal dynamics of lateral channel formation. We interpret our results as evidence that the formation of the lateral channel is the primary goal of /l/ production.

Type: Proceedings paper
Title: Temporal dynamics of lateral channel formation in /l/: 3D EMA data from Australian English
Event: INTERSPEECH 2017, 20-24 August 2017, Stockholm, Sweden
Open access status: An open access version is available from UCL Discovery
DOI: 10.21437/Interspeech.2017-765
Publisher version: https://www.isca-speech.org/archive/Interspeech_20...
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: speech production, articulatory kinematics, lateral channel formation, lateral approximants
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Speech, Hearing and Phonetic Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/10081847
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