Rabbit Hole - 3-22-26 - Archaeoacoustics - sound / frequencies being used to alter the mind.

Rabbit Hole - 3-22-26 - Archaeoacoustics - sound / frequencies being used to alter the mind.

what other things like hal saflieni hypogeum exist in the world-

While the Ħal Saflieni Hypogeum
is considered unique as the only prehistoric underground temple of its kind, there are several other ancient subterranean structures and megalithic sites globally that share similar characteristics, such as being carved from solid rock, serving as sacred burial sites (hypogea), or featuring advanced acoustics.

Similar Subterranean Sites (Hypogea)

A "hypogeum" is a general term for an underground temple or burial chamber. Similar ancient sites include:

Tierradentro
, Colombia: A collection of massive underground burial chambers (hypogea) decorated with geometric patterns, carved into the rock by a pre-Hispanic culture.

Tombs of Saqqara
, Egypt: A vast, ancient burial ground featuring numerous underground chambers and galleries, including the famous

Step Pyramid of Djoser

and the

Serapeum

.

Hypogea of Palmyra
, Syria: Elaborate underground family tombs from the Roman period, often adorned with limestone funerary reliefs.

Xagħra Stone Circle
, Gozo: Another Maltese underground burial site. It is a natural cave system that was modified and used as a prehistoric cemetery, much like a less-architectural version of Ħal Saflieni.

Sites with Acoustic or Architectural Similarities

The Hypogeum is famous for its "Oracle Room," which resonates at specific frequencies (around 111 Hz).
Göbekli Tepe
, Turkey: While not underground, it is one of the world's oldest temple complexes (older than the Hypogeum) and features circular stone structures and intricate carvings that reflect a similar early human focus on ritual and monumental architecture.

Ajanta and
Ellora Caves

, India: Massive rock-cut temple complexes. While much younger than the Hypogeum, they represent the pinnacle of subterranean "negative architecture," where entire temples were carved out of solid basalt cliffs.

The Colosseum's Hypogeum
, Italy: While built for a different purpose, the "hypogeum" beneath the Colosseum in Rome is a complex two-level network of tunnels and cages used for gladiators and animals.

Nearby Megalithic Sites in Malta

If you are interested in the specific culture that built the Hypogeum, these above-ground temples were built by the same civilization and share its unique "lobed" architectural style:

Tarxien Temples

4.5

(4.1K)

Historical landmark

ClosedTarxien, Malta

Ggantija Temples

4.4

(9.3K)

Archaeological museum

ClosedXagħra, Malta

Perched on a cliffside, these temples are remarkably well-preserved and feature precise solar alignments.

Archaeoacoustics

is a multidisciplinary field that studies the acoustic properties of archaeological sites and how ancient civilizations used sound for rituals, social communication, and spiritual experiences. It combines archaeology, physics, and psychoacoustics to understand how architectural design influenced human consciousness.

Annual ReviewsAnnual Reviews +3

The Acoustic Mystery of Ħal Saflieni Hypogeum

The Hypogeum's Oracle Chamber is world-famous for its "Super-Acoustics".

Resonance Frequencies: The chamber is specifically tuned to resonate at frequencies between 110 Hz and 114 Hz.
Standing Waves: A deep male voice chanting at these frequencies creates a standing wave that can be felt physically throughout the entire three-level structure.
Psychological Effects: Studies using EEG and MRI suggest that these specific frequencies may shift brain activity, deactivating the logical left hemisphere and stimulating the creative right hemisphere, potentially inducing trance-like meditative states.
Acoustic Notation: Some researchers believe the red ochre spirals on the walls may have served as a form of "acoustic notation" for rituals.

Other Notable Archaeoacoustic Sites

Newgrange, Ireland: A Neolithic passage tomb that exhibits similar resonance patterns (around 110 Hz) in its stone cavities.
Chichén Itzá, Mexico: Clapping at the base of the Temple of Kukulcan produces an echo that mimics the chirp of the sacred quetzal bird.
Stonehenge, England: Modern reconstructions have shown that the stone circle acted as an "acoustic chamber," magnifying sounds within the center while keeping them private from those outside.
Greek and Roman Theaters: Sites like the Theater of Epidaurus demonstrate advanced engineering that allowed unamplified voices to reach thousands of spectators clearly.

Deepen Your Knowledge

If you're interested in the science behind these "sonic secrets," several specialized resources are available:

Exploring Ancient Sounds and Places: A comprehensive academic look at how sound shaped past societies, available at Barnes & Noble and Thriftbooks.com.
Archaeoacoustics: Exploring Sound and Ancient Consciousness: Focuses on how sound manipulated consciousness at sites like Stonehenge and the Egyptian pyramids. Available through Bookshop.org.
Listening for Ancient Gods: Examines the oldest buildings in the world, including Göbekli Tepe and the Maltese temples, through an auditory lens. Available at Barnes & Noble.

Would you like to explore other mysterious features of the Hypogeum, such as the discovery of elongated skulls or the unique red ochre paintings?

Psychology Meets Archaeology: Psychoarchaeoacoustics for ...
Abstract. How important is the influence of spatial acoustics on our mental processes related to sound perception and cognition?

National Institutes of Health (.gov)

Ancient Man Used “Super-Acoustics” to Alter Consciousness ...
Jun 16, 2014 — Writing jointly, Anthropologist, Dr. Ezra Zubrow, Archaeologist and Psychologist, Dr. Torill Lindstrom

The Oracle Room as it appeared in 1910. View is toward the ...
... Based on the large quantity of human bone, this site was at least primarily a mausoleum, the fi nal resting place of a Neolith..

Aside from its acoustics, the

Ħal Saflieni Hypogeum

is home to several archaeological anomalies that have fueled decades of debate, ranging from mysterious burial rites to theories about an "unknown race".

The Elongated Skulls

During excavations in the early 20th century, archaeologists discovered approximately 7,000 skeletons. Among these, a small percentage of skulls exhibited a distinct cranial elongation.

Scientific View: Most researchers attribute this to craniosynostosis (a condition where skull sutures close prematurely) or deliberate cranial binding, a cultural practice also seen in ancient Peru and Egypt.
The Mystery: Rumors persist that many of these skulls "disappeared" from the National Museum of Archaeology in the 1980s, leading to conspiracy theories about a "hidden race" or extraterrestrial origin.
Unique Anatomy: At least one skull reportedly lacked the fossa median (the sagittal suture), a feature typically present in all human skulls.

The "Sleeping Lady" (The Venus of Malta)

One of the most significant finds was the Sleeping Lady, a 5-inch clay figurine of a woman reclining on a couch

Incubation Rituals: Some believe she represents "Incubation"—a practice where priestesses or the sick would sleep in the temple to receive divine dreams or healing.
Symbolism: Others interpret her as a "Mother Goddess" or a representation of the "Eternal Sleep" of death, given the site's function as a necropolis.

Red Ochre Paintings

The walls and ceilings of the Middle Level are decorated with intricate red ochre spirals and honeycomb patterns.

Only Prehistoric Art: These are the only known prehistoric wall paintings in Malta.
Ritual Use: Copious amounts of red ochre were also found sprinkled over the human remains. Researchers believe it was used to symbolize blood and the "breath of life," perhaps intended to "reanimate" the deceased in the afterlife.

Mirror Architecture

The middle level features rooms that are carved to perfectly mimic above-ground megalithic temples, including trilithons (two upright stones with a lintel), false windows, and corbelled ceilings.

Cognitive Mystery: This suggests a sophisticated prehistoric understanding of "reverse architecture," where the builders meticulously carved "negative space" into solid rock to recreate the look of a constructed building.

The "Snake Pit" and Winter Solstice

The Votive Pit: A two-meter-deep pit near the "Holy of Holies" was found containing animal bones and offerings, leading to its nickname as the "

---show me anomalies of 111hz---

The frequency of

111 Hz is often referred to in archaeoacoustics as the "Holy Frequency" due to its recurring presence in ancient ritual sites and its anomalous effects on human biology.

Anomalous Physical Properties

Standing Waves: When a low male voice chants at 111 Hz in the Oracle Chamber of the Hypogeum, it creates a "standing wave". This makes the sound feel as though it is vibrating through the listener's entire body rather than coming from a specific direction.
Selective Resonance: Research shows that while a male voice or a shamanic hoop drum can trigger this resonance, a female voice generally does not.
Geometric Fine-Tuning: Studies suggest the Hypogeum's builders likely fine-tuned the dimensions of multiple chambers to amplify this specific frequency, a level of acoustic engineering that predates the Egyptian pyramids.

Brain Activity Anomalies

Scientific tests, including MRI and EEG scans, have documented unique neurological shifts when the brain is exposed to 111 Hz:

Prefrontal Cortex Deactivation: This frequency "switches off" the prefrontal cortex, which is responsible for logical thinking and language.
Hemispheric Shift: Dominance shifts from the left (logical) hemisphere to the right (creative/intuitive) hemisphere.
Altered States: This shift is linked to inducing deep, trance-like meditative states, increased empathy, and holistic processing.

Global Anomalies

The recurrence of this specific frequency in unrelated ancient sites is considered one of the greatest mysteries in archaeology:

Irish Cairns: Archaeoacoustician Paul Devereux discovered that many Neolithic burial mounds in Ireland resonate exactly at 111 Hz despite being made of different materials.
Stonehenge, UK: Resonance testing at Stonehenge and other UK megalithic sites consistently falls between 95 and 120 Hz, with 111 Hz being a frequent peak.
Mathematical Connection: Interestingly, Pythagoras reportedly started his musical scale with a note (A) that vibrates at 111 Hz.
Would you like to explore the specific rituals thought to have taken place in these resonant chambers or see more about the scientific equipment used to measure these frequencies?

Mysterious Ancient Temples Resonate at the 'Holy Frequency'
Jun 23, 2025 — 111 Hz the Frequency of High Consciousness Ħal Saflieni Hypogeum of Malta is a temple built between 3500-2500BC

Healing with Sound in Ancient Temples: 111hz
Mar 20, 2026 — 111Hz is a frequency of a low male voice. Paul Devereux is a professor from Cambridge and an archaeo-acoustician who researches

---is 111hz considered infrasonic---

No,

111 Hz is not considered infrasonic.

By definition, infrasound consists of sound waves with frequencies below 20 Hz, which is typically the lower limit of human hearing. Because 111 Hz is well above this 20 Hz threshold, it falls within the audible range for humans (20 Hz to 20,000 Hz).

Frequency Classifications

Infrasound: Below 20 Hz (e.g., 0.001 Hz to 20 Hz). These frequencies are often felt as physical vibrations rather than heard as tones.
Low-Frequency Sound: Generally categorized as the range between 20 Hz and 200 Hz. 111 Hz sits squarely in this category.
Audible Sound (Sonic): 20 Hz to 20,000 Hz.
Ultrasound: Above 20,000 Hz.

While 111 Hz is audible, it is a very low-pitched bass tone. In the context of archaeoacoustics and sites like the Ħal Saflieni Hypogeum, it is significant because it is near the boundary where sound transition from being purely "heard" to being "felt" as a physical resonance in the body.

---Show me new research of stonehenge 0.001 Hz to 20 Hz and aligement with dark space in universe---

While there is no established peer-reviewed research linking

Stonehenge

specifically to a 0.001 Hz to 20 Hz frequency range or to "dark space" voids in the universe, recent studies have significantly advanced our understanding of the site's infrasound potential and its rare lunar alignments.

New Infrasound & Acoustic Research

Recent breakthroughs using 3D-printed scale models (often called "Minihenge") and advanced simulations have quantified Stonehenge's low-frequency capabilities:

Resonant "Booming": Theoretical models suggest the circular arrangement of sarsens and bluestones could act as a cylindrical resonator, potentially stimulated by the wind or rhythmic percussion to produce infrasound (below 20 Hz).
7.97 Hz Frequency: Some contemporary researchers have identified a primary frequency of 7.97 Hz within the site's geometry. This aligns closely with the Schumann Resonance (7.83 Hz), the natural electromagnetic frequency of the Earth's atmosphere.
The "Acoustic Sweet Spot": Testing from the University of Salford (2020–2024) confirmed the monument acts as a "sound chamber". Mid-frequency sounds (human voices) were found to be amplified by roughly 4 dB, while sounds from outside the circle were dampened, creating an intimate, private ritual space.

Celestial Alignments with the "Dark" and Rare Phenomena

While traditional focus remains on the Sun, new research highlights alignments with the "darker" or rarer cycles of the cosmos:

The Major Lunar Standstill (2024–2025): Researchers from English Heritage and several universities are currently investigating if Stonehenge was purposefully aligned with the moon's most extreme rising and setting points, an event that occurs only every 18.6 years.
Winter Solstice Precedence: Modern archaeological consensus is shifting to suggest the Winter Solstice sunset (the shortest, darkest day of the year) was more significant to the builders than the Summer sunrise. The stones frame the Sun's lowest point on the horizon, marking a pivotal transition from darkness back to light.
Dark Sky Connection: While not aligned with "dark energy" or galactic voids in a modern astrophysical sense, the site is recognized as a vital link to the prehistoric night sky, where the lack of light pollution made "dark space" between constellations a primary canvas for ancient storytelling and navigation.

Lower Frequency Impulse

0.8 seconds (Reverberation)

The Debrief (2021)

Geometric Resonance

~7.97 Hz

Medium/Cymatics Study (2024)

Internal Amplification

+4 Decibels (dB)

Audiology.org (2024)

Lunar Cycle

18.6 years

English Heritage (Ongoing)

Would you like to explore how modern archaeoastronomy software is used to recreate the exact night sky as it appeared at Stonehenge in 2500 BC?

Theory | Sounds of Stonehenge - WordPress.com
At Stonehenge, the sarsen stone and bluestone circles and their lintel rings would constrain the air, which could be stimulated by...

Sep 3, 2020 — A Remarkable New Study Suggests That Stonehenge Was Built to Amplify Sound During Ancient Ruling-Class Rituals. The stones also wo..

---does the moon every 18.5 years at stonehenge have significance---

The 18.6-year lunar cycle, known as the

Major Lunar Standstill, is highly significant at

Stonehenge

. While the site is most famous for its solar alignments (solstices), modern archaeoastronomers believe its builders also meticulously tracked this rare lunar rhythm.

Why the 18.6-Year Cycle Matters

The Moon’s rising and setting points on the horizon shift daily. Every 18.6 years, these points reach their maximum extremes, rising and setting further north and south than the Sun ever does.

Generational Rarity: Because it occurs only once roughly every 19 years, it was a "once-in-a-generation" event. Neolithic elders may have passed down oral stories about when the Moon last reached its "sacred" extreme direction.
The "Station Stones" Alignment: Four smaller stones forming a rectangle around the main circle—the Station Stones—have a long axis that aligns almost perfectly with the southernmost moonrise during a Major Lunar Standstill.
Funerary Significance: Archaeologists found a cluster of cremation burials in the southeastern part of the monument, which is the exact direction of this southernmost moonrise. This suggests the 18.6-year cycle may have been linked to ancestral rites, death, or rebirth.
The Aubrey Holes: The 56 Aubrey Holes (pits) encircling the site may have been used to track the cycle's progress or even predict eclipses.