….it is quite refreshing to know that there is a brain-entrainment modality that actually works. In fact,

I am convinced that Hemi-Sync goes beyond “blind” entrainment and consequently avoids some of the danger of underdeveloped technologies that clearly have the potential to do harm to those using them.”

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What is the Hemi-Sync® Technology? A History

The Hemi-Sync® Technology was invented and developed by the late Robert Monroe, founder of the Monroe Institute®, who was  one of the world’s greatest researchers into the science of human consciousness.

Hemi-Sync® is a an audio guidance program that has been extensively researched and has been proven, both scientifically and clinically, to have the ability to harness the power of human potential. It is a safe, time proven audio guidance technology that has many applications for your daily life.


Robert Monroe spent the latter half of his life exploring the many realms of human consciousness. Along the way, he pioneered many advances and created a number of groundbreaking technologies –– one of his most renowned technologies being Hemi-Sync®.

Beginning in the late 1950’s, Mr. Monroe began experimenting with what was known at that time as “astral projections.” However, he felt that this terminology simply was not descriptive enough for what he was experiencing. So he invented a new one.

He concluded that “out-of-body experience” or “OBE” was a far more appropriate and descriptive term, particularly regarding his own personal consciousness expanding journeys.

Mr. Monroe took the study of out-of-body experiences very seriously and eventually built a laboratory, and then a state-of-the-art facility to thoroughly understand and explain this phenomenon.

That facility eventually become known as the Monroe Institute® and it is located in Faber, Virginia, about a three hour drive southwest of Washington, DC. The Monroe Institute was founded as a non-profit company.


One of the core programs that was developed at the Monroe Institute was a course called, the Gateway Voyage®, which has been offered for the past thirty years. In fact, it is a prerequisite for all other programs that are taught at the Institute.

The Gateway Voyage® is an entire week of self-discovery and exploration into expanding human consciousness where attendees are introduced to the revolutionary technology of Hemi-Sync®, one of the primary technologies created and perfected by Robert Monroe.

Hemi-sync® is short for Hemispheric Synchronization, also known as Brainwave Synchronization. Hemi-Sync® defines the process of  synchronizing the two hemispheres of the brain together, thus the word, “hemi” for hemispheres, and “sync” for synchronization.

This amazing audio guidance technology works through the generation of a series of complex, multi-layered audio signals, also known as Binaural Beats, which act together to create a resonance that produces unique brainwave patterns characteristic of specific states of consciousness.

It is very powerful for creating, accessing and sustaining different states of awareness, and thus, different levels of consciousness.

The Hemi-Sync® audio guidance process works by sending different tones into each ear through a stereo headphone or speaker. Then the two hemispheres of the brain begin to act in unison to hear a third signal, which essentially is the difference between the first two tones.

This third tone is not an actual sound, but rather, an electrical signal that can only be perceived in the brain when both hemispheres are working together. The electrical signal is perceived as a wavering type sound, which stimulates the brain to move from random waves to more balanced and thus, highly synchronized brain wave patterns.

The end result of this process is a much more focused, centered whole brain state known as hemispheric synchronization or Hemi-Sync®. Thus, Hemi-Sync® produces an optimal condition for improving overall human performance.

This technology has been used for many different purposes which include relaxation and sleep induction, learning and memory aids, helping those with physical and mental difficulties, anxiety and stress management all accomplished by reaching higher altered states of consciousness.

The Gateway Voyage® is also available as a home study course, that is entitled, The Gateway Experience® In-Home Training Series and also heavily employs the use of Hemi-Sync®. The Gateway Experience® is available through our Gateway Experience store for a special discounted price.


The Monroe Institute® continues to carry on the standards and legacy of Robert Monroe as it works to continually refine and develop the Hemi-Sync® technology ever forward.

Recently, the Monroe Institute® teamed up with the Institute of Noetic Sciences (IONS) to offer the Gateway Voyage® course at their campus in Petaluma, California. The IONS was founded by former NASA Apollo 14 astronaut, Edgar Mitchell, in 1971, the very same year the Monroe Institute was founded.

In yet another interesting development, the Institute of Noetic Sciences as been mentioned in the latest novel by popular fiction writer, Dan Brown titled, “The Lost Symbol”. Dan Brown, of course, is also the author of “The DaVinci Code” and “Angels and Demons”.

Consequently, with the popularity and recognition of Dan Brown’s work, the IONS has seen a major spike in interest from many people around the world since the release of “The Lost Symbol’s” in 2009.

In turn, this will likely generate yet more interest in the Gateway Voyage®, the Gateway Experience® In-Home Training Series and the Hemi-Sync® process.

4 thoughts on “Hemi-Sync

  1. william j. willis sr.

    I purchased,The Gateway Experience tapes in the 1970’s,I started studing the home program and never finished. I,had some very convincing experiences!But because of job related circumstances Ihad to discontinue my studies!Some years later I started my home program again!!but my cassettes were damaged!I wish that I had completed the program!There is so very much knowledge to be gain!!!!! W.J.Willis,Sr.,p.o. box 1254,Cambridge,Md.21613

    1. Traveler Post author

      Hi William,

      Thanks for your post. I started Hemi-Sync stuff way back when and then found The Gateway Experience later. Lots of good information and greawt expereinces to be had here.

      You can get the whole program at this link here on the blog:

      The individual Waves are also available so you can go through the program one CD at a time.

      Look forward to hearing from you when you get going again!

  2. Pingback: Astral Projection and the DaVinci Code | Projection Techniques

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