Can you help me with my pitch? Studying a tool for real-time automated feedback

J. Schneider Barnes, Dirk Börner, Peter Van Rosmalen, Marcus Specht

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    In our pursue to study effective real-time feedback in Technology Enhanced Learning, we developed the Presentation Trainer, a tool designed to support the practice of nonverbal communication skills for public speaking. The tool tracks the user’s voice and body to analyze her performance, and selects the type of real-time feedback to be presented. This paper describes an empirical study where we tested the effects of the Presentation Trainer’s feedback on learners who used the tool while practicing for an elevator-pitch. Results from this study reveal that the feedback has a significant effect on the learners’ motivation, confidence, self-awareness and performance.
    Original languageEnglish
    Pages (from-to)318-327
    JournalIEEE Transactions on Learning Technologies
    Issue number4
    Publication statusPublished - 16 Nov 2016


    • Buffer storage
    • Microphones
    • Object recognition
    • Public speaking
    • Real-time systems
    • Timing;Training
    • computers and education
    • feedback
    • multimodal systems


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