Acoustic phonetics involves the study of speech production and perception in regard to higher grammatical levels, especially phonology. The acoustic model of speech production computes the resonances of the vocal tract during different articulatory configurations. Formant frequencies, fundamental frequency, amplitude spectra and duration are used to describe language varieties phonetically. The results are interpreted within a phonological framework. The focus of our group lies on insufficiently described languages and language varieties.

We also develop new speech synthesis technology where our phonetic analyses are applied. The technologies range from acoustic and audio-visual speech synthesis, dialect and accent transformation to singing synthesis. In dialect synthesis we developed methods to generate in-between varieties that lie between a standard and a dialect, and thereby allow for a more realistic speech output production. Visual speech synthesis allows for the animation of a virtual character from textual input.  

Acoustic Phonetics

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