Letter-to-sound Conversion for Galician Tts Systems
نویسندگان
چکیده
In this paper, a linguistically rule-based letter-to-sound (LTS) conversion algorithm is described for Galician language. A complete set of phonological transcription rules regarding the Galician standard variety is presented. A SAMPA computer readable phonetic alphabet for Galician is also proposed. The algorithm was implemented and tested by using CORGA text materials. The obtained experimental results gave rise to 98.5% of accuracy rate. The main errors were identified and possible solutions are discussed in order to increase this value. It is also demonstrated in our work that there is a very good matching between Galician, European Portuguese and Brazilian Portuguese LTS conversion algorithms. Our purpose with this work is to develop a module that can improve synthetic speech naturalness in Galician. Other applications of this system can be expected like language teaching/learning. These results, have proved the dramatic importance of linguistic knowledge on the development of Text-to-Speech systems (TTS).
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