A Half-Duplex Dual-Lingual Video Chat to Enhance Simultaneous Second Language Speaking Skill

This study presents a smart software system named BiTak which employs strict turn-taking to encourage learners to practice speaking skills via a half-duplex dual-lingual video chat using a recording function. BiTak aims to motivate the conversation using two different languages as well as to identify the mutual benefits through this kind of conversation for the need of improving simultaneous bilingual acquisition. The paper also examines the improvement of users using BiTak that is assessed objectively by certified language teachers following the scoring tool named rubric. It is revealed from the results of the experiments that the system brings about the sense of language learning and favorably boost students’ speaking skills.