There are few previous empirical studies on an automatic speed control of multimedia
materials based on a natural user interface (NUI) that distinguish note taking from watching
to a lecture through nodding. This study conducted two experiments and an interview. First,
in experiment 1, we found that there is significant relevancy between the participants’ action
of lowering their head and note taking. Second, we determined that nodding that lasts less
than two seconds has no relationship to note taking. In experiment 2, we determined that the
e-learning system with the automatic speed control of multimedia materials reported less
learner manual control, clicking pause and rewind buttons, than the regular e-learning
system. For the interview, the analysis shows that “The automatic speed control of
multimedia materials” and “Note taking” influence “Participant’s satisfaction” positively
There are few previous empirical studies on an automatic speed control of multimediamaterials based on a natural user interface (NUI) that distinguish note taking from watchingto a lecture through nodding. This study conducted two experiments and an interview. First,in experiment 1, we found that there is significant relevancy between the participants’ actionof lowering their head and note taking. Second, we determined that nodding that lasts lessthan two seconds has no relationship to note taking. In experiment 2, we determined that thee-learning system with the automatic speed control of multimedia materials reported lesslearner manual control, clicking pause and rewind buttons, than the regular e-learningsystem. For the interview, the analysis shows that “The automatic speed control ofmultimedia materials” and “Note taking” influence “Participant’s satisfaction” positively
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