Session Production VII:

Production VII: Assimilation and Sandhi

Type: oral
Chair: Francis Nolan
Date: Thursday - August 09, 2007
Time: 09:00
Room: 3 (Yellow)


James M. Scobbie, Queen Margaret University, Edinburgh
Marianne Pouplier, University of Edinburgh
Alan Wrench, Articulate Instruments Ltd
Paper File
  We investigate l-sandhi in English, specifically the changes that occur in alveolar contact when word-final /l/ appears in a range of connected speech contexts. Analysis of EPG data for Scottish Standard English and Southern Standard British English speakers shows that there is wide variation in the rate of vocalisation and in the extent of alveolar contact, and that whether the following word is lexically onsetless or not is not enough to predict how /l/ behaves. We conclude that resyllabification is not sufficient as a mechanism for conditioning this alternation.
Production VII-2 Temporal, spectral evidence of devoiced vowels in Korean
Yoonsook Mo, University of Illinois at Urbana-Champaign
Paper File
  Vowel devoicing is a phenomenon that is reported to occur in many languages such as Japanese, Parisian and Montreal French, Turkish and English. This paper investigates vowel devoicing in Korean. A devoiced vowel does not exhibit characteristic vocal tract resonances, and instead is realized as a long interval of aspiration or frication following consonant release, resulting in non-distinct segment boundaries between devoiced vowels and adjacent voiceless consonants. This paper examines temporal and spectral evidence of devoiced vowels and, among other findings, reveals that in Korean devoiced high vowels are not segmentally deleted but phonetically masked, suggesting that vowel devoicing results from the overlap of glottal gestures. This paper also examines the effect of the preceding consonant place and manner, and the height and front/backness of vowels on devoicing.
Susanne Fuchs, ZAS Berlin
Laura Koenig, Haskins Laboratories New Haven
Ralf Winkler, TU Berlin
Paper File
  We investigated alveolar-velar stop sequences in connected speech processes in order to understand the potential articulatory and aerodynamic causes for the alveolar weakening, often discussed with respect to assimilation. We will also shed light on the potential click-nature of these sequences as suggested in the literature. By means of a new experimental set-up which allowed us to monitor tongue-palatal contact patterns simultaneously with intraoral pressure variations 8 German native speakers were recorded. Temporal results and relative burst intensities were obtained from acoustic data, the potential overlap of alveolar and velar movements was obtained by tongue palatal contact patterns in the anterior and posterior regions, and a brief period of pressure rarefaction at alveolar release (negative pressure) was taken as evidence for clicks. On the basis of these data speaker specific evidence is provided for weak clicks in German.

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