Francisco Campillo

Also published as: Francisco Campillo Díaz


A Galician Syntactic Corpus with Application to Intonation Modeling
Montserrat Arza | José M. García Miguel | Francisco Campillo | Miguel Cuevas - Alonso
Proceedings of the Eighth International Conference on Language Resources and Evaluation (LREC'12)

This paper will present the design of a Galician syntactic corpus with application to intonation modeling. A corpus of around $3000$ sentences was designed with variation in the syntactic structure and the number of accent groups, and recorded by a professional speaker to study the influence on the prosodic structure.


TTS Evaluation Campaign with a Common Spanish Database
Iñaki Sainz | Eva Navas | Inma Hernáez | Antonio Bonafonte | Francisco Campillo
Proceedings of the Seventh International Conference on Language Resources and Evaluation (LREC'10)

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.

Building High Quality Databases for Minority Languages such as Galician
Francisco Campillo | Daniela Braga | Ana Belén Mourín | Carmen García-Mateo | Pedro Silva | Miguel Sales Dias | Francisco Méndez
Proceedings of the Seventh International Conference on Language Resources and Evaluation (LREC'10)

This paper describes the result of a joint R&D project between Microsoft Portugal and the Signal Theory Group of the University of Vigo (Spain), where a set of language resources was developed with application to Text―to―Speech synthesis. First, a large Corpus of 10000 Galician sentences was designed and recorded by a professional female speaker. Second, a lexicon with phonetic and grammatical information of over 90000 entries was collected and reviewed manually by a linguist expert. And finally, these resources were used for a MOS (Mean Opinion Score) perceptual test to compare two state―of―the―art speech synthesizers of both groups, the one from Microsoft based on HMM, and the one from the University of Vigo based on unit selection.


A Galician Textual Corpus for Morphosyntactic Tagging with Application to Text-to-Speech Synthesis
Lorena Seijo Pereiro | Ana Martínez Ínsua | Francisco Méndez Pazó | Francisco Campillo Díaz | Eduardo Rodríguez Banga
Proceedings of the Fourth International Conference on Language Resources and Evaluation (LREC’04)