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Self-supervised Speech Comparison for L2 Phone, Rhythm, and Intonation Scoring

paperactiveprovisionalself-supervised-speech-comparison-for-l2-phone-rhythm-and-intonation-scoring-f1ecec1e·1 events·first seen 3h ago

Aliases: Self-supervised Speech Comparison for L2 Phone, Rhythm, and Intonation Scoring

Co-occurring entities

Dynamic Time Warping WavLM

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4arXiv · cs.CL·3h ago·source ↗

Self-supervised WavLM + DTW framework for L2 pronunciation, rhythm, and intonation scoring

Researchers propose a text-free framework for second-language (L2) speech assessment using Dynamic Time Warping (DTW) over self-supervised WavLM representations, covering phonetic accuracy, rhythm, and intonation in English and Japanese. The DTW-based approach comparing learner speech to native templates exceeds human agreement on holistic phonetic scoring, and a novel warping-path method approaches human-level rhythm assessment. Intonation scoring, combining DTW over prosodic residuals with pitch and intensity features, shows more modest results. The method requires no labeled L2 data, making it applicable in low-resource settings.

Evaluation and Benchmarking Dynamic Time Warping Self-supervised Speech Comparison for L2 Phone, Rhythm, and Intonation Scoring WavLM