The theatre at Aspendos, Turkey is famous for its magnificent acoustics. Even the slightest sound made at the center of the orchestra can be easily heard as far as the upper most galleries. It is the best preserved and most complete example of a Roman theatre.

Ancient Acoustic Artifacts and Communication with the Gods

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In this article, I will introduce the subject of archaeoacoustics and ancient “musical instruments”. As we will see, these can be used in conjunction with a number of ancient sites from around the world.

The Archaeoacoustics Field of Study

Archaeoacoustics is the use of acoustical study within the wider scientific field of archaeology. This includes the study of the acoustics at archaeological sites, and the study of acoustics in archaeological artifacts. Over the last 40 years it has become increasingly obvious that studying the sonic nature of certain areas of archaeology can help us understand ancient cultures. Archaeoacoustics is an interdisciplinary field, it includes various fields of research including: archaeology, ethnomusicology, acoustics and digital modelling. These form the larger field of music archaeology.

One of the leading research groups publishing new papers on archaeoacoustics is SB Research Group (SBRG). SBRG is a multidisciplinary university project supported by University of Trieste, Italy “that aims to study from 2010 the architecture, geometry, shape and materials of ancient structures in Europe”.

“Archaeoacoustics is an interesting new method for re-analyzing ancient sites, it uses different study parameters to re-discover forgotten technology which operates on the human emotional sphere.” (SBRG).

Engraved pututo (conch) Strombus shell, Chavin 1000-500 BC

Engraved pututo (conch) Strombus shell, Chavin 1000-500 BC ( CC BY 3.0 )

Research over the last few decades is starting to shed light on the connection between ancient instruments and ancient sites. At Chavín de Huántar, Peru, Miriam Kolar of Stanford University reports in her article, “The Code of the Conch - How the science of sound explained an ancient Peruvian oracle”:

“Archaeoacoustic research—sonic science applied to archaeological evidence—has revealed secrets built into Chavín’s architecture, unlocked by the sound of conch shells that were buried for millennia.”

“Performing a replica shell horn inside Chavín’s galleries, I can feel through my body the resonances between instrument and architecture, a physically and emotionally transformative experience that would have been similarly sensed—but interpreted differently—by humans in the past”.

Purpose and Use of Ancient Conch Musical Instruments

Chavín de Huántar and the work carried out by Stanford University provide us with a window into the acoustic past. A solid case has been made for the use of certain sound frequencies affecting the human emotional sphere, possibly in conjunction with psychotropic plants. We are generally led to believe that our ancestors were superstitious people who gleaned no real material benefit from their “rituals”. The evidence appears to be slowly eroding this theory. For example, if we combine the work carried out by Stanford with the work carried out by UCLA, it becomes clear that certain sound frequencies are capable of changing regional brain activity. From my own research and experience, I can add, whilst inside certain Egyptian pyramids, being immersed in these sound frequencies has a more pronounced effect than simply listening to the sound frequency on headphones.

Certain notes produced by the conch shell are amplified by the chamber it’s played in. I can say from personal experience, once a stone structure’s resonant pitch has been matched, you can feel sound waves entering the body. On the tours I help organise, the first contact people have with this effect can often be very surprising. In this setting, the human voice can often sound like a didgeridoo, in the past, Australian guests have looked around for someone playing a didgeridoo! Even though the sound is simply my voice, creating vowel sounds, which are then amplified by the chamber.

Figure 1. An Aztec conch shell trumpeter called a "quiquizoani" in Nahuatl from the Codex Magliabecchi

Figure 1. An Aztec conch shell trumpeter called a "quiquizoani" in Nahuatl from the Codex Magliabecchi (Public Domain )

People of the past may have experienced similar astonishment. Once the initial surprise is out of the way, I explain how altered states can be accomplished. This is where the practice of meditation can help. A quiet mind is key. Many of us have trouble simply sitting in silence; this can act as a barrier to the effects of sound. Relaxation and attention help to facilitate the process.

Peruvian Whistling Vessels

Another interesting ancient musical artifact is documented in a 1974 article from The Journal of Transpersonal Psychology, “Double-chambered whistling bottles:  A unique Peruvian pottery form” by Daniel K. Stat.

This article gives the results and conclusions of a seemingly innocent ancient artifact. Archaeologists had previously dismissed these “whistling bottles” as simple entertainment while pouring a drink. However, upon detailed study and analysis the intricacies of design and the acoustic properties have come to light. Human trials were conducted by the Franklin Institute and Hahnemann Medical College of Philadelphia. The sound level and range of frequencies produced by these artifacts was found to alter “heart rate, blood pressure, and respiration”.



I currently have several unique examples of  whistling vessels which were suppossedly found on the Pacific side of Nicaragua, and that I am currently attempting to authenticate. To my knowlege, there are no records of similar objects in this region, thus I am very sceptical of their authenticity. When I have more information to share on these remarkable looking pieces, I will publish my tentative findings. Who knows, they may very well be beautifully done fakes, or possibly pieces which could challenge our ideas about the indigenous cultures in the “Isthmo-Columbian” area of the Americas.

R. Lee Bowers

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