Archaeoacoustics is an approach to analyze any archaeological sites that have interesting acoustic characteristics or natural physical phenomena affecting brain activity. It can be used to demonstrate for example sound occurrences incorporated into the design of the ancient structures by the architects. This is not the only application, following an anthropologic approach, archaeoacoustics can explain why during rituals an altered state of mind intensifies the experience. In fact natural phenomena, now scientifily mesuareable, influence the psychological state of the people by inducing mystical states. Over seven years of research in this field we have demonstrated ancient civilisations had some knowledge of this phenomena, through understanding the significance of why specific locations were choosen for buildings such as temples. Using digital recording equipment, it is now possible to record non-audible sound frequency bands. These bands have a direct effect on the human body and mind without a person being aware of the existence of their accompanying mechanical vibrations.