Salford's clever academics, who once took me shopping in a virtual supermarket – you sat in an armchair wearing a helmet and a glove – have now recreated the sound of Stonehenge.

We are nowhere nearer cracking the mystery of the monument as a result; but who would want to be? Apart from all the mountains of remaindered books of theories, a puzzle solved is never as gripping as a conundrum still under way.

But the four-year project by Dr Bruno Fazenda and colleagues at Huddersfield and Bristol universities, has established how the shouts, speeches, songs or sacrificial screams would have sounded, whatever material they may have contained. The method has been a painstaking piece of 'archaeoacoustics', a relatively new discipline which reveals the sound quality of buildings from the past.