More and more efforts have been recently made to apply speech technologies to language learning-The authors have been especially focusing on Japanese manners of generating English word stress. This is because accentuation habits inevitable to Japanese learners can be easily found in their stress generation. In our previous studies, a stressed syllable detector and an accentuation habit estimator were developed, where the estimated habits of individual learners accorded well with their English pronunciation proficiency rated by English teachers. However, the estimation methods in our previous studies required several dozens of word utterances or a relatively large amount of computation even when a single word utterance enabled the estimation. In this paper, we investigated a method which required only a single word utterance with a small computation cost. Results showed that similar tendencies can be found between the habits estimated in our previous study and those in the current one.
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