TR2010-085

Contextual Push-to-Talk: Shortening Voice Dialogs To Improve Driving Performance


    •  Weinberg, G.; Harsham, B.; Forlines, C.; Medenica, Z., "Contextual Push-to-talk: Shortening Voice Dialogs to Improve Driving Performance", International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI), ISBN: 978-1-60558-835-3, September 2010, pp. 113-122.
      BibTeX Download PDF
      • @inproceedings{Weinberg2010sep1,
      • author = {Weinberg, G. and Harsham, B. and Forlines, C. and Medenica, Z.},
      • title = {Contextual Push-to-talk: Shortening Voice Dialogs to Improve Driving Performance},
      • booktitle = {International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI)},
      • year = 2010,
      • pages = {113--122},
      • month = sep,
      • isbn = {978-1-60558-835-3},
      • url = {http://www.merl.com/publications/TR2010-085}
      • }
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  • Research Areas:

    Multimedia, Speech & Audio


We present a driving simulator-based evaluation of a new technique for simplifying in-vehicle device interactions and thereby improving driver safety. We show that the use of multiple, contextually linked push-to-talk buttons (Multi-PTT) shortens voice dialog duration versus the use of a conventional, single push-to-talk button (Single-PTT). This benefit comes without detriment to driving performance or visual attention to the forward roadway. Test subjects also preferred the Multi-PTT approach over the conventional approach, and reported that it imposed a lower cognitive workload.