jueves, 26 de agosto de 2010

Stonehenge acoustics

Sound recording at reconstruction of Stonehenge in Maryhill Monument, USA.
This is a video that illustrates acoustic effects at Stonehenge. The Maryhill Monument, a concrete replica of Stonehenge that was created as a war memorial, is acoustically stimulated by a loudspeaker playing simple short bass drum beats at the resonant frequency of the space, in time to echoes heard there. This sets up resonance in the space, or standing waves. The simple bass drum sound, which does not change, is turned into a throbbing bass by the acoustics of the space.

Link 2: Maryhill Stonehenge Resonance (YouTube by ruperttill, 03 de noviembre de 2009).

Related article: Echoes of the past: The sites and sounds of prehistory. Did our ancient ancestors build to please the ears as well as the eyes? Trevor Cox pitches into the controversial claims of acoustic archaeologists.