NB Uttale: A Norwegian Pronunciation Lexicon with Dialect Variation

Marie Iversdatter Røsok, Ingerid Løyning Dale

Abstract
We present a Norwegian pronunciation lexicon with Bokmål orthographic word forms and up to eight alternate phonological transcriptions per word form. The lexicon covers dialectal variations for five geographical areas, as well as pronunciation variations for spontaneous and manuscript-read speech. It is based on the NST Bokmål lexicon for East Norwegian, whose original phonological transcriptions have been corrected, before they were converted with dialect specific regular expression rules. To evaluate the quality and consistency of the new, rule-generated transcriptions, we trained grapheme-to phoneme (G2P) models and report our results with word- (WER) and phoneme-error-rate (PER) metrics. We found that the G2P models trained on lexica for Southwest and West Norwegian close-to written transcriptions have the lowest WER scores, and that all error-corrected, close-to-written lexica yield better WER scores than the original NST lexicon. The lexicon is available under an open license, and can be used for various language technology applications and in linguistic research.
Anthology ID:
2024.lrec-main.1056
Volume:
Proceedings of the 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING 2024)
Month:
May
Year:
2024
Address:
Torino, Italia
Editors:
Nicoletta Calzolari, Min-Yen Kan, Veronique Hoste, Alessandro Lenci, Sakriani Sakti, Nianwen Xue
Venues:
LREC | COLING
SIG:
Publisher:
ELRA and ICCL
Note:
Pages:
12087–12092
Language:
URL:
https://aclanthology.org/2024.lrec-main.1056
DOI:
Bibkey:
Cite (ACL):
Marie Iversdatter Røsok and Ingerid Løyning Dale. 2024. NB Uttale: A Norwegian Pronunciation Lexicon with Dialect Variation. In Proceedings of the 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING 2024), pages 12087–12092, Torino, Italia. ELRA and ICCL.
Cite (Informal):
NB Uttale: A Norwegian Pronunciation Lexicon with Dialect Variation (Røsok & Dale, LREC-COLING 2024)
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https://preview.aclanthology.org/nschneid-patch-5/2024.lrec-main.1056.pdf
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