Abstract
Explorative experiments for implementation of loudspeaker array system to real environment are performed. We suggest the new design of the exhibition support system in a museum. The loudspeaker array system will be used for explaining exhibitions at museum. The loudspeaker array system is a non-contact sound interface. The loudspeaker array system can form the high-sound pressure area. The comparison between explaining exhibition by texts and sounds is performed at the museum. For ten days 2007 in March, obtaining cooperation of the National Science Museum, we conducted comparative experiments. We search the effective of explaining by letters and sound by questionnaire and quiz of examinees. In all the experiments, elementary school students are targets. The participants are sixth from third grader.