OFAI

VieCtoS: Phonology-Acoustics Mapping for Concept-to-Speech

In this nationally sponsored project (Austrian Science Foundation), a prototype of a concept-to-speech system was developed able to produce German utterances from a symbolic representation that contains word-specific information (phonemes, word accent, syllable structure) as well as abstract prosodic information. The representation is based on the autosegmental phonologic theory of Pierrehumbert which can be considered a de-facto standard of prosodic notation. The project focussed on developing a mapping from this symbolic description of prosody to the corresponding phonetic/acoustic parameter values (fundamental frequency, duration, intensity). An algorithm for realizing this mapping was developed and implemented. The description arrived at forms the input for a parametrizable synthesizer. The synthesizer used in the project is based on an adaptation of a demi-syllable synthesizer developed at the Institute für Nachrichtentechnik und Hochfrequenztechnik at the Vienna University of Technology.


Duration: 1995 - 1998
Sponsor: Austrian Science Foundation (FWF)
Researchers: Kai Alter, Georg Niklfeld, Hannes Pirker, Erhard Rank, Harald Trost
Partners: Institute für Nachrichtentechnik und Hochfrequenztechnik (TU Wien)