Sinhala grapheme-to-phoneme conversion and rules for schwa epenthesis

Authors:
Asanka Wasala;Ruvan Weerasinghe;Kumudu Gamage
Affiliations:
University of Colombo, Colombo, Sri Lanka;University of Colombo, Colombo, Sri Lanka;University of Colombo, Colombo, Sri Lanka
Venue:
COLING-ACL '06 Proceedings of the COLING/ACL on Main conference poster sessions
Year:
2006

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Abstract

This paper describes an architecture to convert Sinhala Unicode text into phonemic specification of pronunciation. The study was mainly focused on disambiguating /schwa/ and /a/ vowel epenthesis for consonants, which is one of the significant problems found in Sinhala. This problem has been addressed by formulating a set of rules. The proposed set of rules was tested using 30,000 distinct words obtained from a corpus and compared with the same words manually transcribed to phonemes by an expert. The Grapheme-to-Phoneme (G2P) conversion model achieves 98% accuracy.