Parallel Quiet Acoustic Guides for Sensible Culture

Parallel Quiet Acoustic guides system (PQuA) with a digital signage enables people to effectively acquire adequate information for a short time on the way to the destination. We ensured that most users could simultaneously catch two voice explanations among three voice explanations based on the packaging method of a long sentence and synchronization method for removing duplication of voice guides. Most users could also simultaneously catch two short voice explanations of about 50 words without synchronization. We also discuss how a user utilizes his/her two ears in order to simultaneously listening to two voice explanations that come from different directions.