Archaeoacoustics


Archaeoacoustics is the use of acoustical study as a methodological approach within the field of archaeology. Archaeoacoustics examines the acoustics of archaeological sites and artifacts. It is an interdisciplinary field that includes archaeology, ethnomusicology, acoustics and digital modelling, and is part of the wider field of music archaeology, with a particular interest in prehistoric music. Since many cultures explored through archaeology were focused on the oral and therefore the aural, researchers believe that studying the sonic nature of archaeological sites and artifacts may reveal new information on the civilizations scrutinized.

Notable work

Disciplinary methodology

Damian Murphy of the University of York has studied measurement techniques in acoustic archaeology.

Ancient sites

In 1999, Aaron Watson undertook work on the acoustics of numerous archaeological sites, including that of Stonehenge, investigated numerous chamber tombs and other stone circles. Rupert Till and Bruno Fazenda also explored Stonehenge's acoustics. In the October 2011 edition of the Journal of the Acoustical Society of America, Steven Waller argued that acoustics interference patterns were used to design the blue print of Stonehenge.
Miriam Kolar and colleagues studied various spatial and perceptual attributes of Chavín de Huantar. They identified within the site held the same resonance produced by pututu shells.
Scientific research led since 1998 suggests that the Kukulkan pyramid in Chichen Itza mimics the chirping sound of the quetzal bird when humans clap their hands around it. The researchers argue that this phenomenon is not accidental, that the builders of this pyramid felt divinely rewarded by the echoing effect of this structure. Technically, the clapping noise rings out and scatters against the temple's high and narrow limestone steps, producing a chirp-like tone that declines in frequency.

Lithophony

Archaeologist Paul Devereux's work has looked at ringing rocks, Avebury and various other subjects, that he details in his book Stone Age Soundtracks.
Ian Cross of University of Cambridge has explored lithoacoustics, the use of stones as musical instruments.
Archaeologist Cornelia Kleinitz has studied the sound of a rock gongs in Sudan with Rupert Till and Brenda Baker.

Art and acoustics

Iegor Reznikoff and Michel Dauvois studied the prehistoric painted caves of France, and found links between the artworks' positioning and acoustic effects. An AHRC project headed by Rupert Till of Huddersfield University, Chris Scarre of Durham University and Bruno Fazenda of Salford University, studies similar relationships in the prehistoric painted caves in northern Spain.
Archaeologists Margarita Díaz-Andreu, Carlos García Benito and Tommaso Mattioli have undertaken work on rock art landscapes in Italy, France and Spain, paying particular attention to echolocation and augmented audibility of distant sounds that is experienced in some rock art sites.

Greek and Roman structures

Steven Waller has also studied the links between rock art and sound. Panagiotis Karampatzakis and Vasilios Zafranas investigated the Acoustic Properties of the Necromanteion of Acheron, Aristoxenus acoustic vases, and the evolution of acoustics in the ancient Greek and Roman odea.

Study groups

The International Study Group on Music Archaeology, which includes archaeoacoustical work, is a pool of researchers devoted to the field of music archaeology. The study group is hosted at the Orient Department of the German Archaeological Institute Berlin and the Department for Ethnomusicology at the Ethnological Museum of Berlin. The ISGMA comprises research methods of musicological and anthropological disciplines.
The Acoustics and Music of British Prehistory Research Network was funded by the Arts and Humanities Research Council and Engineering and Physical Sciences Research Council, led by Rupert Till and Chris Scarre, as well as Professor Jian Kang of Sheffield University's Department of Architecture. It has a list of researchers working in the field, and links to many other relevant sites. An e-mail list has been discussing the subject since 2002 and was set up as a result of the First Pan-American/Iberian Meeting on Acoustics by Victor Reijs.
Based in the US, the OTS Foundation has conducted several international conferences specifically on Archaeoacoustics, with a focus on the human experience of sound in ancient ritual and ceremonial spaces. The published papers represent a broader multidisciplinary study and include input from the realms of archaeology, architecture, acoustic engineering, rock art, and psycho-acoustics, as well as reports of field work from Gobekli Tepe and Southern Turkey, Malta, and elsewhere around the world.
The European Music Archeology Project is a multi-million euro project to recreate ancient instruments and their sounds, and also the environments in which they would have been played.

Past interpretations controversy

An early interpretation of the idea of archaeoacoustics was that it explored acoustic phenomena encoded in ancient artifacts. For instance, the idea that a pot or vase could be "read" like a gramophone record or phonograph cylinder for messages from the past, sounds encoded into the turning clay as the pot was thrown. There is little evidence to support such ideas, and there are few publications claiming that this is the case. In comparison, the more contemporary approach to the field now has many publications and a growing significance. This earlier approach was first raised in the 6 February 1969 issue of New Scientist magazine, where it was discussed in David E. H. Jones's light-hearted "Daedalus" column. He wrote:
Jones subsequently received a letter from one Richard G. Woodbridge III who claimed to have already been working on the idea and said that he had sent a paper on the subject to the journal Nature. The paper never appeared in Nature, but the August 1969 edition of the journal Proceedings of the IEEE printed a letter from Woodbridge entitled "Acoustic Recordings from Antiquity". In this communication, the author stated that he wished to call attention to the potential of what he called "Acoustic Archaeology" and to record some early experiments in the field. He then described his experiments with making clay pots and oil paintings from which sound could then be replayed, using a conventional record player cartridge connected directly to a set of headphones. He claimed to have extracted the hum of the potter's wheel from the grooves of a pot, and the word "blue" from an analysis of patch of blue color in a painting.
In 1993, archeology professor Paul Åström and acoustics professor Mendel Kleiner performed similar experiments in Gothenburg, and reported that they could recover some sounds.
An episode of MythBusters explored the idea: Episode 62: Killer Cable Snaps, Pottery Record found that while some generic acoustic phenomena can be found on pottery, it is unlikely that any discernible sounds could be recorded on the pots unless ancient people had the technical knowledge to deliberately put the sounds on the artifacts.
In 1902, Charles Sanders Peirce wrote: "Give science only a hundred more centuries of increase in geometrical progression, and she may be expected to find that the sound waves of Aristotle's voice have somehow recorded themselves."

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