Talk by Bernd Möbius (Saarland University, Saarbrücken) in the Phonology Colloqium
We are happy to announce a talk by Bernd Möbius in the Phonology Colloqium on Wednesday, 13.12.2023, 16-18 ct. in IG 4.301.
Title: Information Density and Phonetic Variation.
Abstract:
In this talk I will take an information-theoretic perspective on speech production and perception. I will explore the relation between information density and phonetic encoding and decoding. Information density of a linguistic unit is defined in terms of surprisal (the unit's negative log probability in a given context). The main hypothesis underlying our experimental and modeling work is that speakers modulate details of the phonetic encoding in the service of maintaining a balance of the complementary relation between information density and phonetic encoding. To test this hypothesis we analyzed the effects of surprisal on phonetic encoding, in particular on dynamic vowel formant trajectories, stop consonant voicing, syllable duration, and vowel space size, while controlling for several basic factors related to the prosodic structure, viz. lexical stress and major prosodic boundaries, in the statistical...