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Typology of Vowel and Consonant Quantity in Southern German varieties: acoustic, perception, and articulatory analyses of adult and child speakers

Subject Area General and Comparative Linguistics, Experimental Linguistics, Typology, Non-European Languages
Applied Linguistics, Computational Linguistics
Term from 2016 to 2024
Project identifier Deutsche Forschungsgemeinschaft (DFG) - Project number 282416069
 
Final Report Year 2024

Final Report Abstract

Languages and their sound systems change over time. These sound changes can be observed retrospectively (e.g. Latin noctem → Italian notte), but also during the actual sound change process. A sound change currently affecting the temporal structure of syllables in West Central Bavarian and Alemannic was the focus of this project, which examined in more detail the relationship between currently observable, i.e. synchronous, variation and diachronic changes in southern German varieties. In two project phases two overall objectives were pursued: (1) modelling the conditions under which quantity relationships change diachronically in order to gain a better understanding of sound change processes in the world's languages; (2) modelling the temporal course of phonological change. The extensive investigations of the first funding phase on the (in)stability of phonemic quantity in vowelconsonant sequences (VCS) provided new evidence for (1) sound change processes in Bavarian VCS in Austria and Germany due to dialect compensation, (2) the intergenerational stability of VCS in Swiss German dialects and (3) the development of aspirated plosives in younger speakers of Bavarian and Swiss German dialects. The second project phase built on these findings and specifically investigated (1) emerging trade-offs between acoustic cues in diachronic change, (2) the impact of language contact and interaction on sound change using agent-based modelling, and (3) the spread of sound change processes through lexical diffusion. These findings were again used (4) to improve dialect synthesis. The innovation of the project lay in the large-scale, cross-varietal apparent time study; in the combination of different methods to test linguistic theories; in the consideration of social and phonetic factors; in the application of computational methods to extensive, cross-varietal data from speakers of different age groups; in the exploration of possible applications for language technology. The project combined the acoustic and sociophonetic analyses of quantity relationships in Austrian varieties including their application to dialect synthesis established in Vienna with the acoustic, perceptual and physiological methods developed at the IPS (Munich) on the production-perception relationship in speakers of different age groups and the methods established at the Phonetic Laboratory (Zurich) for the typology of Swiss German varieties. The collaboration between the three sites has contributed among others to improving sound change models, as the role of internal and external factors in the (in)stability of quantity can now be better assessed.

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