The peculiar properties of sound at Stonehenge

New Scientist August 27th … acoustic experiments were made at Stonehenge in an attempt to determine how it may have sounded during prehistoric gatherings. Once the acoustic fingerprint was discovered it could then be analysed – or modelled, using an anechoic chamber (at the University of Salford), and afterwards, convoluted. Due to reflection of sound from the stones, reverberating sounds such as drumming become deeper – as if the bass had been turned up and the tenor turned down. Why this research is being repeated now is unclear as acoustic properties at ancient sites was a popular theme some years ago. The bigger question now is, was it the product of accident or design?