TTS evaluation campaign with a common spanish database
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hdl:2117/9608
Tipus de documentText en actes de congrés
Data publicació2010
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
This paper describes the first TTS evaluation campaign designed for Spanish. Seven research institutions took part in the evaluation
campaign and developed a voice from a common speech database provided by the organisation. Each participating team had a period
of seven weeks to generate a voice. Next, a set of sentences were released and each team had to synthesise them within a week period.
Finally, some of the synthesised test audio files were subjectively evaluated via an online test according to the following criteria:
similarity to the original voice, naturalness and intelligibility. Box-plots, Wilcoxon tests and WER have been generated in order to
analyse the results. Two main conclusions can be drawn: On the one hand, there is considerable margin for improvement to reach the
quality level of the natural voice. On the other hand, two systems get significantly better results than the rest: one is based on statistical
parametric synthesis and the other one is a concatenative system that makes use of a sinusoidal model to modify both prosody and
smooth spectral joints. Therefore, it seems that some kind of spectral control is needed when building voices with a medium size
database for unrestricted domains.
CitacióSainz, I. [et al.]. TTS evaluation campaign with a common spanish database. A: International Conference on Language Resources and Evaluation. "Seventh Int. Conf. on Language Resources and Evaluation (LREC)". Valleta: 2010, p. 2155-2160.
ISBN2-9517408-6-7
Versió de l'editorhttp://www.lrec-conf.org/proceedings/lrec2010/pdf/456_Paper.pdf
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