Francisco Campillo Díaz

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In this article we present the main linguistic and phonetic features of Galician which need to be considered in the development of speech technology applications for this language. We also describe the solutions adopted in our text-to-speech system, also useful for speech recognition and speech-to-speech translation. On the phonetic plane in particular, the(More)
Traditionally, corpus-based text-to-speech systems generate the speech signal as the result of a two-staged process. First, the target prosody is determined and, after that, a set of speech units that minimize a cost function is selected. Once the target prosody is selected, no alternative prosodic information is generally considered, even when appropriated(More)
In this contribution we describe a corpus-based text-to-speech system for Galician. While traditional concatenative speech-synthesis systems generally employ a quite reduced set of speech units, corpus-based synthesis systems consider many instances of every unit and, by means of dynamic programming techniques, select the sequence of units that minimizes a(More)
This paper will present the morphosintactic tagger and the corpus of contemporary written Galician which are being employed in the development of the Galician version of our tex-to-speech synthesizer. Their quality and accuracy make them useful for speech technology applications and turn them into possible references for further investigation and research(More)
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(More)
The quality of the synthetic speech provided by concatenative speech systems depends heavily on the capability of accurately modeling the different characteristics of speech segments. Moreover, the relative significance or weighting of each feature in the unit selection process is a key point in the relationship between synthetic speech and human(More)
This paper will present the design of a Galician syntactic corpus with application to intonation modeling. Our paper paid attention to phonetics and syntactic phenomena to achieve a comparison beetwen its appearances. A corpus of around 3000 sentences was designed with variation in the syntactic structure and the number of accent groups, and recorded by a(More)