Assessed and Annotated Vowel Lengths in Spoken Icelandic Sentences for L1 and L2 Speakers: A Resource for Pronunciation Training

Caitlin Laura Richter, Kolbrún Friðriksdóttir, Kormákur Logi Bergsson, Erik Anders Maher, Ragnheiður María Benediktsdóttir, Jon Gudnason


Abstract
We introduce a dataset of time-aligned phonetic transcriptions focusing on vowel length (quantity) in Icelandic. Ultimately, this aims to support computer assisted pronunciation training (CAPT) software, to automatically assess length and possible errors in Icelandic learners’ pronunciations. The dataset contains a range of long and short vowel targets, including the first acoustic description of quantity in non-native Icelandic. Evaluations assess how manual annotations and automatic forced alignment characterise quantity contrasts. Initial analyses also imply partial acquisition of phonologically conditioned quantity alternations by non-native speakers.
Anthology ID:
2025.nodalida-1.56
Volume:
Proceedings of the Joint 25th Nordic Conference on Computational Linguistics and 11th Baltic Conference on Human Language Technologies (NoDaLiDa/Baltic-HLT 2025)
Month:
march
Year:
2025
Address:
Tallinn, Estonia
Editors:
Richard Johansson, Sara Stymne
Venue:
NoDaLiDa
SIG:
Publisher:
University of Tartu Library
Note:
Pages:
518–524
Language:
URL:
https://preview.aclanthology.org/Author-page-Marten-During-lu/2025.nodalida-1.56/
DOI:
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Cite (ACL):
Caitlin Laura Richter, Kolbrún Friðriksdóttir, Kormákur Logi Bergsson, Erik Anders Maher, Ragnheiður María Benediktsdóttir, and Jon Gudnason. 2025. Assessed and Annotated Vowel Lengths in Spoken Icelandic Sentences for L1 and L2 Speakers: A Resource for Pronunciation Training. In Proceedings of the Joint 25th Nordic Conference on Computational Linguistics and 11th Baltic Conference on Human Language Technologies (NoDaLiDa/Baltic-HLT 2025), pages 518–524, Tallinn, Estonia. University of Tartu Library.
Cite (Informal):
Assessed and Annotated Vowel Lengths in Spoken Icelandic Sentences for L1 and L2 Speakers: A Resource for Pronunciation Training (Richter et al., NoDaLiDa 2025)
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https://preview.aclanthology.org/Author-page-Marten-During-lu/2025.nodalida-1.56.pdf