Dynamic blending and assimilation in Catalan lingual fricative sequences. An ultrasound and acoustic study
Recasens, Daniel 1954- (Universitat Autònoma de Barcelona)

Fecha:	2024
Resumen:	Ultrasound and center of gravity frequency data for the sequences /ʃ#s/ and /s#ʃ/ produced by Central Catalan speakers reveal that the former sequence is implemented through continuous articulatory and spectral trajectories which, depending on speaker, may be: intermediate between /ʃ/ and /s/ all throughout, thus supporting a dynamic blending mechanism; /ʃ/-like at onset and intermediate between the two fricatives at offset, which is indicative of C1-to-C2 carryover coarticulation. The sequence /s#ʃ/, on the other hand, undergoes regressive assimilation into [ʃ(ʃ)] according to the acoustic signal but less clearly so in the light of the articulatory data. This discrepancy appears to be due to the fact that, while C1=/s/ assimilates indeed to C2=/ʃ/ at constriction location, coarticulation-induced changes in tongue body configuration behind the primary articulator may occur as long as they do not jeopardize the front-cavity dependent frequency characteristics of the [ʃ] frication noise. Differences in articulatory complexity between /ʃ#s/ and /s#ʃ/ appear to result from the production mechanisms involved, i. e. , tongue dorsum raising behind the /s/ constriction for /s#ʃ/ and tongue body repositioning for /ʃ#s/. In agreement with this interpretation, /ʃ#s/ but not /s#ʃ/ turned out to be longer than /s#s/ and /ʃ#ʃ/.
Ayudas:	Agència de Gestió d'Ajuts Universitaris i de Recerca 2017-SGR-34 Ministerio de Ciencia, Innovación y Universidades PGC2018-096877-B-I00
Nota:	Altres ajuts: acords transformatius de la UAB
Nota:	Published online by Cambridge University Press: 29 February 2024
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Dynamic blending ; Assimilation ; Fricative sequences ; Ultrasound ; Catalan
Publicado en:	Journal of the International Phonetic Association, 2024 , ISSN 1475-3502

DOI: 10.1017/S002510032400001X

30 p, 813.6 KB

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