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저자정보
(고려대학교)
저널정보
한국외국어대학교 외국어교육연구소 외국어교육연구 외국어교육연구 제40권 제1호
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    초록·키워드

    This paper reconceptualizes Speech-to-Speech (STS) systems for English conversation education through a modular pipeline lens. We argue that educational effectiveness depends on intentionally designing the VAD–STT–LLM–TTS pipeline as an integrated pedagogical system rather than treating STS as a black box. We summarize the functional roles of each component and examine how they shape key dimensions of conversation learning, including fluency, accuracy, interactional competence, affective support, and pronunciation/listening development. We also highlight cross-module dynamics such as error propagation and compensation and discuss how end-to-end latency influences learners’ sense of real-time interaction. Based on these insights, we propose practical design principles for classroom and self-study contexts, including task- and proficiency-sensitive VAD/STT settings, level-adaptive LLM prompting and feedback strategies, and activity designs leveraging controllable TTS for listen-and-repeat, shadowing, and role-play. We conclude with implications for future empirical validation and learner- and domain-specific optimization.

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