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    %0 Conference Proceedings
    %A Houix, Olivier
    %A Bonnot, Sandrine
    %A Vienne, Fabrice
    %A Vericel, Baptiste
    %A Pardo, Louis-Ferdinand
    %A Misdariis, Nicolas
    %A Susini, Patrick
    %T Perceptual influence of the vibratory component on the audio component of alarms produced by rumble strips, by measuring reaction times
    %D 2012
    %B CFA - Congres Français d'Acoustique
    %C Nantes
    %F Houix12b
    %K audio-tactile-lane-marking
    %K vibro-acoustics
    %K reaction time
    %X The aim of the ROADSENSE ANR-10-VPTT-010-01 project is to define a driver assistance that prevents involuntary lane departure. Soon as one drives over an audio-tactile lane-marking (ATLM), it produces a vibratory and sound alarm that helps the driver getting back on the road. Based on an objective measurement using simple reaction time, the perceptual influence of the vibratory component on the audio component of alarms produced by ATLM was studied. Two situations were compared: the first one with sound only and the second one with sound and vibration. During this experiment, participants were placed in a semi-realistic driving situation and were asked to press a pedal as soon as possible when they perceived an alarm. Audio-vibration alarms were synthesized by extracting a signal pattern from real recordings of sound and vibrations produced by ATLM. This pattern (vibration and sound) was repeated using three different inter onset intervals (IOI). Values of reaction times show neither an effect nor an interaction of the vibration component on the audio component of the alarm. However, the influence of the IOI is important; shorter is the IOI, better is the reaction time. This result is in agreement with previous results from the literature.
    %1 6
    %2 3
    %U http://articles.ircam.fr/textes/Houix12b/
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