A rule-based grapheme-to-phone converter for TTS systems in european portuguese

Braga, Daniela; Coelho, Luis; Vianna Resende, Fernando Gil

http://hdl.handle.net/10400.22/7627

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Authors

Braga, Daniela

Coelho, Luis

Vianna Resende, Fernando Gil

Abstract(s)

In this paper, a linguistically rule-based grapheme-to-phone (G2P) transcription algorithm is described for European Portuguese. A complete set of phonological and phonetic transcription rules regarding the European Portuguese standard variety is presented. This algorithm was implemented and tested by using online newspaper articles. The obtained experimental results gave rise to 98.80% of accuracy rate. Future developments in order to increase this value are foreseen. Our purpose with this work is to develop a module/ tool that can improve synthetic speech naturalness in European Portuguese. Other applications of this system can be expected like language teaching/learning. These results, together with our perspectives of future improvements, have proved the dramatic importance of linguistic knowledge on the development of Text-to-Speech systems (TTS).

Keywords

Grapheme-to-phone converter Phonological rules Speech processing Text-to-speech systems

URI

http://hdl.handle.net/10400.22/7627

Citation

Braga, D., Coelho, L., & Vianna Resende, F. G. (2006). A rule-based grapheme-to-phone converter for tts systems in european portuguese. 2006 International Telecommunications Symposium. Institute of Electrical & Electronics Engineers (IEEE). http://doi.org/10.1109/its.2006.4433293