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On the role of duration prediction and symbolic representation for the evaluation of synthetic speech

  • In order to determine priorities for the improvement of timing in synthetic speech this study looks at the role of segmental duration prediction and the role of phonological symbolic representation in listeners' preferences. In perception experiments using German speech synthesis, two standard duration models (Klatt rules and CART) were tested. The input to these models consisted of symbolic strings which were either derived from a database or a text-to-speech system. Results of the perception experiments show that different duration models can only be distinguished when the symbolic string is appropriate. Considering the relative importance of the symbolic representation, "post-lexical" segmental rules were investigated with the outcome that listeners differ in their preferences regarding the degree of segmental reduction. As a conclusion, before fine-tuning the duration prediction, it is important to calculate an appropriate phonological symbolic representation in order to improve timing in synthetic speech.

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Metadaten
Author:Caren Brinckmann, Jürgen Trouvain
URN:urn:nbn:de:bsz:mh39-68610
Parent Title (English):4th ISCA Tutorial and Research Workshop (ITRW) on speech synthesis (SSW4), Blair Atholl Palace Hotel, Perthshire, Scotland, August 29 - September 1, 2001.
Publisher:ISCA
Place of publication:Baixas
Document Type:Conference Proceeding
Language:English
Year of first Publication:2001
Date of Publication (online):2017/12/20
Publicationstate:Veröffentlichungsversion
GND Keyword:Automatische Sprachproduktion; Deutsch; Lautquantität
Pagenumber:6
First Page:1
Last Page:6
Dewey Decimal Classification:400 Sprache / 430 Deutsch
BDSL-Classification:Sprache im 20. Jahrhundert. Gegenwartssprache
Linguistics-Classification:Phonetik / Phonologie
Open Access?:Ja
Licence (German):Es gilt das UrhG