Phonetic accommodation to natural and synthetic voices: Behavior of groups and individuals in speech shadowing

The present study investigates whether native speakers of German phonetically accommodate to natural and synthetic voices in a shadowing experiment. We aim determine this phenomenon, which is frequently found HHI, also occurs HCI involving speech. examined features pertain different phonetic domains: allophonic variation, schwa epenthesis, realization pitch accents, word-based temporal structure distribution spectral energy. On the individual level, we that participants converged varying subsets features, while they maintained their baseline behavior other cases or, rare instances, even diverged from model voices. This shows accommodation with respect one particular feature may not predict another feature. group condition all under examination, however very subtly so for epenthesis. voices, partly reducing strength effects triggered accommodating as well. predominant pattern voice types was convergence during interaction followed by divergence after interaction.