TY  - GEN
A1  - Shaw, Jason A.
A1  - Gafos, Adamantios I.
A1  - Hoole, Philip
A1  - Zeroual, Chakir
T1  - Dynamic invariance in the phonetic expression of syllable structure
BT  - a case study of Moroccan Arabic consonant clusters
T2  - Postprints der Universität Potsdam : Humanwissenschaftliche Reihe
N2  - We asked whether invariant phonetic indices for syllable structure can be identified in a language where word-initial consonant clusters, regardless of their sonority profile, are claimed to be parsed heterosyllabically. Four speakers of Moroccan Arabic were recorded, using Electromagnetic Articulography. Pursuing previous work, we employed temporal diagnostics for syllable structure, consisting of static correspondences between any given phonological organisation and its presumed phonetic indices. We show that such correspondences offer only a partial understanding of the relation between syllabic organisation and continuous indices of that organisation. We analyse the failure of the diagnostics and put forth a new approach in which different phonological organisations prescribe different ways in which phonetic indices change as phonetic parameters are scaled. The main finding is that invariance is found in these patterns of change, rather than in static correspondences between phonological constructs and fixed values for their phonetic indices.
T3  - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - 516 
KW  - american english
KW  - perception
KW  - speech
KW  - organization
KW  - duration
KW  - patterns
KW  - syllabication
KW  - articulation
KW  - sequences
KW  - knowledge
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-412479
SN  - 1866-8364
IS  - 516
SP  - 455
EP  - 490
ER  - 
TY  - GEN
A1  - Shaw, Jason A.
A1  - Gafos, Adamantios I.
T1  - Stochastic time models of syllable structure
T2  - Postprints der Universität Potsdam : Humanwissenschaftliche Reihe
N2  - Drawing on phonology research within the generative linguistics tradition, stochastic methods, and notions from complex systems, we develop a modelling paradigm linking phonological structure, expressed in terms of syllables, to speech movement data acquired with 3D electromagnetic articulography and X-ray microbeam methods. The essential variable in the models is syllable structure. When mapped to discrete coordination topologies, syllabic organization imposes systematic patterns of variability on the temporal dynamics of speech articulation. We simulated these dynamics under different syllabic parses and evaluated simulations against experimental data from Arabic and English, two languages claimed to parse similar strings of segments into different syllabic structures. Model simulations replicated several key experimental results, including the fallibility of past phonetic heuristics for syllable structure, and exposed the range of conditions under which such heuristics remain valid. More importantly, the modelling approach consistently diagnosed syllable structure proving resilient to multiple sources of variability in experimental data including measurement variability, speaker variability, and contextual variability. Prospects for extensions of our modelling paradigm to acoustic data are also discussed.
T3  - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - 514 
KW  - speech production
KW  - temporal organization
KW  - complex onsets
KW  - english
KW  - cues
KW  - perception
KW  - syllabication
KW  - articulation
KW  - categories
KW  - phonology
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-409815
SN  - 1866-8364
IS  - 514
ER  -