Dominguez M , Farrus M , Wanner L. Thematicity-based Prosody Enrichment for Text-to-Speech Applications. 9th International Conference on Speech Prosody 2018
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Dominguez M , Farrus M , Wanner L. Thematicity-based Prosody Enrichment for Text-to-Speech Applications. 9th International Conference on Speech Prosody 2018
Dominguez M , Farrus M , Wanner L. Thematicity-based Prosody Enrichment for Text-to-Speech Applications. 9th International Conference on Speech Prosody 2018
Theoretical studies on the information structure–prosody interface argue that the content packaged in terms of theme and rheme correlates with the intonation of the corresponding sentence as regards to rising and falling patterns (L*+H LH% and H* LL% respectively). When such a correspondence is used to derive prosody in text-to-speech applications, it is often the case that ToBI labels are statically mapped to acoustic parameters. Such an approach is insufficient to solve the problem of monotonous synthetic voices for two reasons: it is repetitive with respect to prosody enrichment, and a binary flat themerheme representation does not serve to describe properly long complex sentences. In this paper, we introduce a methodology for a more versatile thematicity-based prosody enrichment based on: (i) a hierarchical tripartite thematicity model as proposed in the Meaning–Text Theory, and (ii) a corpus-based approach for the automatic extraction of acoustic parameters (fundamental frequency, breaks and speech rate) that are mapped to a varied range of prosody control tags of the synthesized speech. Such a prosody enrichment has shown to provide higher results in a perception test when implemented in a TTS system.
Version at UPF e-repository: http://hdl.handle.net/10230/34905
GitHub account for the author: https://github.com/monikaUPF