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arXiv · 2411.10927

Compositional Phoneme Approximation for L1-Grounded L2 Pronunciation Training

Jisang Park·Minu Kim·DaYoung Hong·Jongha Lee
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Abstract

Learners of a second language (L2) often map non-native phonemes to similar native-language (L1) phonemes, making conventional L2-focused training slow and effortful. To address this, we propose an L1-grounded pronunciation training method based on compositional phoneme approximation (CPA), a feature-based representation technique that approximates L2 sounds with sequences of L1 phonemes. Evaluations with 20 Korean non-native English speakers show that CPA-based training achieves a 76% in-box formant rate in acoustic analysis, 17.6% relative improvement in phoneme recognition accuracy, and over 80% of speech being rated as more native-like, with minimal training. Project page: https://gsanpark.github.io/CPA-Pronunciation.

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Jisang Park, Minu Kim, DaYoung Hong, Jongha Lee. 2024-11-17. Compositional Phoneme Approximation for L1-Grounded L2 Pronunciation Training. https://arxiv.org/abs/2411.10927

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