Concepts & Research

Describing facts and terms that underlie the concept of Infra-Sound Therapy.


Sound has been used since ancient times for healing purposes. With the technology of the 21st century, we see many uses of sound, encompassing both high and low frequencies, as an aid to repair our physical bodies.

We use ultra-sound [high] for healing and repairing muscles, and even high-energy sound for cleaning our teeth! Lower frequency patterns, especially at specific levels, have been used to calm the mind, and to promote a sense of well-being. The use of brain wave frequencies to induce an alpha or theta [sleep] state can be very beneficial to the health, as it is during deep sleep state that much natural healing occurs.

This method addresses all levels of the body - physical, mental, emotional, chemical, neuro physical (brain/body) and cellular.

The idea of frequency as a healing tool works well as a companion to allopathic medicine and holistic practice. Sound frequencies can help to alleviate chronic as well as acute conditions, whether physical or emotional.


There are two main ways that sound affects you.

The first is called psycho-acoustics. These are sounds that go into your ears and into our brain, affecting your nervous system, including your heart rate and respiration. This can produce great therapeutic benefits and is certainly something that occurs when you listen to music, for example.

The second is called vibro-acoustics. These are sounds that go into our body and vibrate you on a cellular level. These sounds can also produce amazing effects.

While all sound (including music) that you hear have some vibro-acoustic ability, there are some sounds that in particular are extremely non-musical, yet quite excellent on vibrating the physical body. Some sounds can come from an external source (receivers/ headphones or sound bed) while others can come from an internal source. The later are the humming sounds that you produced with the mouth opened or closed, forcing the sound to emerge from the nose.


Humming is in fact, the most powerful self-created sound, which can produce vibro-acoustic effects, enabling the sounds to internally massage you and affecting you in the way that no other such sound can do. Thus, the simplest sounds is the most profound. 


The vibrational frequency of two objects in contact with each other frequently fall into sync. When the frequencies are the same, it is called resonance. But when a vibrational body of a stronger resonance influences another in its field, leading the beat, it is called entrainment.

Biomusical entrainment means body movements synchronisation (e.g. foot tapping) to an external perceived rhythm such as human music and dance. Humans are the only species for which all individuals experience entrainment. Neural entrainment on the other side, refers to the the brain's capacity to naturally synchronise its brainwave frequencies with the rhythm of periodic external stimuli (auditory, visual, or tactile).


Gamma is hyperspeed, above 40 HZ. and it is the most recently discovered frequency. Little is known about this state of mind, but initial research shows Gamma waves are associated with high-level information processing and bursts of insight. Perhaps we are evolving to adapt with our fast paced, technology-driven world?

Beta is mostly associated with concentration, cognition, alertness, and focus. This state of mind allows you to make connections quickly and come up with solutions and ideas. It is great for creative projects and also a great state of mind for sports or physical activity that requires focused attention. The Beta wave rate is between 13-40 HZ (beats per second).

Alpha is about relaxation, imagination, visualization. This slow cycle of brain wave is 7-12 HZ (beats per second) is also associated with peace, safety and is a great state of mind for relieving stress. It is also present when people watch movies or television. It is considered a gateway to deeper realms of consciousness and the Schuman Resonance which is the resonant frequency of the earth’s electromagnetic field. This state is essential to well-being.

Theta is the state associated meditation, intuition, memory and was first noticed when EEG was applied to meditating monks. This mystical realm is elusive and mysterious since brain activity slows almost to the point of sleep, but not quite. This state brings heightened receptivity, visions, flashes of dreamlike imagery, inspiration, and your buried memories. You may feel like you are floating or that your spirit is reaching beyond the container of your body. It is 4-7 HZ. and 4.5 beats per second appears to be the most optimal for inducing this “shamanic” state of consciousness. This meditative state increases creativity, enhances learning, reduces stress and awakens intuition and other extrasensory perception skills.

Delta clocks in at about 0-4 HZ. and is pretty much where we go when we are in a deep sleep. This state is crucial for restoration of the body and healing. Delta has to do with the subconscious, the place where intuition arises.


  1. Elizabeth von Muggenthaler (2004).“Bioacoustics Research” Fauna Communications Research Institute. Retrieved on 2008-07-15 from
  2. Liebowitz, Richard, and Linda Smith, eds. The Center for Integrative Medicine at Duke University (2006) “Bioacoustics Therapy” The Duke Encyclopedia of New Medicine: Conventional and Alternative Medicine for All Ages, p. 567. Rodale, New York, NY. ISBN 1-59486-494-2
  3. Liebowitz, Richard, and Linda Smith, eds. The Center for Integrative Medicine at Duke University (2006) “Sound Therapy” The Duke Encyclopedia of New Medicine: Conventional and Alternative Medicine for All Ages, p. 573. Rodale, New York, NY. ISBN 1-59486-494-2
  4. American Music Therapy Association (2004). “What Is Music Therapy?” Music Therapy Makes a Difference. Retrieved on 2008-07-15 from
  5. Davis, Christopher and Vergara, Victor M. (2008). “Psychoacoustics” How audio codecs work – Psycoacoustics. Retrieved on 2008-07-15 from
  6. Atwater, F. Holmes (2004). “The Hemi-Synch Process” Research Division, The Monroe Institute. Retrieved on 2008-07-15 from
  7. Gerber, Richard (2001). Vibrational Medicine: the #1 handbook of subtle-energy therapies, 3rd Ed, pp.522-523. Bear and Company., ISBN 1-879181-58-4.
  8. Trivieri, Larry (2003). “Bioacoustics: Using Sound to Heal and Prevent Disease” ‘’Health On The Edge: Visionary Views of Healing in the New Millennium’’: 209-233. Tarcher/Penguin, New York, NY. ISBN 1-58542-262-2
  9. Wisneski, Leonard A. and Anderson, Lucy (2004). “Bioacoustics” The Scientific Basis of Integrative Medicine, pp.157-158. CRC Press, Boca Raton, FL. ISBN ISBN-10: 084932081X
  10. Mann, Michael D (November 2002) “Audition” ‘’ The Nervous System In Action’’. Chapter 8. Retrieved July 17 2008 from
  11. Bell, Thom (Director). (1997). The Sonic Apothecary: Sharry Edwards and Bioacoustical Technology [DVD]. Healing Vision Films, Inc. Productions.
  12. Edwards, Sharry (1992. “Tone as Music and Emotion” Signature Sound Technologies: Published Papers 1982-1993. Signature Sound Works, Albany, OH. ISBN 0-9631878-2-1.
  13. Davis, Dorinne, and Edwards, Sharry. (April 2002). BioAcoustic Voiceprint Frequencies and Otoacoustic Emissions, American Academy of Audiology Annual Convention. Retrieved July 18, 2008 from
  14. Edwards, Sharry (2003). “Exploring New Concepts of BioAcoustics”“Ninth Annual BioAcoustic Colloquium”. Sound Health Research Institute, Inc
  15. Edwards, Sharry (2004). “Our Frequency Based Universe” ‘’Tenth Annual Bioacoustic Colloquium”. Sound Health Research Institute, Inc.
  16. Edwards, Sharry (August 2005). “Unmasking the Secrets of Bioacoustics” ‘’Eleventh Annual Bioacoustic Colloquium’’. Sound Health Research Institute, Inc.
  17. Graham, Sarah (July 2005). “Cassini Reports on Sights and Sounds of Saturnian Neighborhood” Scientific American Inc. Retrieved 2008-07-20 from .
  18. Boyd, Robynne (October 2007). “Strange but True: Black Holes Sing” Scientific American Inc. Retrieved 2008-07-20 from
  19. Pelling, Andrew E et. Al (August 2004). “Local Nanomechanical Motion of the Cell Wall of Saccharomyces cerevisiae” ‘’Science Magazine’’ Vol. 305. no. 5687, pp. 1147 – 1150, DOI: 10.1126/science.1097640. Retrieved 2008-07-21 from .
  20. Pelling, Andrew E. (2004). “The Singing Cell” ‘’The Dark Side of the Cell’’. Retrieved 2008-07-21 from
  21. Pelling, Andrew E. (2004). “Composition” ‘’The Dark Side of the Cell’’. Retrieved 2008-07-21 from
  22. Alexjander, Susan (2007). “Pulsars and the Frequencies of Elements”. Retrieved 2008-07-20 from
  23. Blachly, Nancy (2005). “BioAcoustics: Exploring the power of your voice to reveal vocal codes” Retrieved 2008-07-20 from
  24. Stone, James L. (2003). “Dr. Hans Berger” ‘’A Photographic Exhibit of Some of the Founders of Neurology’’. From the Louis D. Boshes, M.D. Archives, Center for the History of Neurosciences, Department of Neurology, University of Illinois at Chicago. Retrieved 2008-07-20 from .
  25. Edwards, Sharry (October 2005). “Definitive Theory of Human BioAcoustic Vocal Profiling & Sound Presentation” The Journal of Bioacoustic Biology Volume #5, Issue#11rev 1.4 – 07/21/06: 3-23. Retrieved 07/17/2008 from
  26. Addison, John (Producer). (2007). Doorway To A New Medicine: Bioacoustic Vocal Profiling [DVD]. AVS Video Productions, LLC.