This study investigates how using a voice-based Asynchronous Technology-Mediated Communication framework (ATMC) can affect English for Academic Purposes (EAP) students' fluency, accuracy, and intelligibility. Research has highlighted the benefits of ATMC in improving various elements of spoken communication, but to date, its application to EAP contexts has been little studied. In EAP speaking/listening courses at a large Canadian university, a team of instructor-researchers developed a system to provide learners more speaking and listening practice opportunities and to give individualized video feedback (veedback) on speaking performance. The instructor-researchers used a practitioner enquiry research methodology to investigate the effectiveness of the voice-based ATMC for 14 participants, drawing upon qualitative data from student interviews and the instructor's qualitative and quantitative assessment of the students' responses to tasks. Findings indicate that the system resulted in overall gains in fluency, accuracy, and intelligibility due to a combination of the voice-based ATMC design, repetition and practice, and the veedback. Qualitative comments from participants indicate personalized feedback led to increased motivation. The framework described in this article, therefore, represents several important benefits for the application of voice-based ATMCs in EAP classrooms.