Frequently Asked Questions about Hemi-Sync®
General Equipment Cautions Series Listening Experience
Q: In a nutshell, what is Hemi-Sync?
A: Hemi-Sync® is a scientifically based and clinically proven "audio-guidance" technology that uses sound to influence brain wave activity. This
patented, and highly sophisticated technology is backed by over 50 years of research. For more details, see the expanded explanation on our
Q: How does Hemi-Sync work?
A: Hemi-Sync® is an audio-guidance process that works through the generation of complex, multilayered audio signals, which act together to
create a resonance that is reflected in unique brain wave forms characteristic of specific states of consciousness. The result is a focused, whole-
brain state known as hemispheric synchronization, or “Hemi-Sync®,” where the left and right hemispheres are working together in a state of
coherence. As an analogy, lasers produce focused, coherent light. Hemi-Sync® produces a focused, coherent mind, which is an optimal condition
for improving human performance.
Q: Is Hemi-Sync on all the tapes and CDs?
Q: Are all titles available in both tape and CD format?
All titles are available on CD. We are in the process of phasing out our cassette tape inventory.
Q: Are the Hemi-Sync frequencies the same on each title ?
A:No. The Hemi-Sync® process has evolved into a sophisticated multi-layering of Hemi-Sync® signals - "designer mixes" of sound frequencies,
fashioned to be optimally effective for a given application. Naturally, Hemi-Sync® sleep products incorporate predominately delta frequencies;
learning products predominately beta and so forth. However these designer mixes are supplemented with special sound frequencies, which
enable the desired result. This is the "key" to the effectiveness of Hemi-Sync.
Q: How long are Hemi-Sync tapes and CDs?
A: Most are between 35 and 60 minutes long. Timing varies to accomplish the purpose of each listening experience.
Q: When I download a CD to my computer, the media player displays a different title.
A: Most media players first access an online database (which may or may not have the latest or correct information) to identify the contents of a
CD. You may be able to adjust your media player’s settings to pull the information from the CD instead of the online database. Since 2006
Monroe Products has digitally encoded our CDs with artist, title and copyright information, but we have little to no input on how online databases
Q: Can someone with hearing loss benefit from Hemi-Sync?
A: Yes. Doctors and individuals with impaired hearing tell us that the frequencies are effectively carried to the brain by the bones in the ear
Q: Is Hemi-Sync like hypnosis?
A: Yes, they are similar. Hypnosis is an induced, altered state of mind, in which the body is deeply relaxed, sufficient to be temporarily ignored,
except for demands like bladder fullness, etc. It is sometimes described as "focused concentration." This "state" is one in which the participant
has perhaps even more control over the body and self than in "ordinary" states of consciousness. Witness the fact that hypnosis is sometimes
used for pain control in minor surgeries, childbirth, and even dentistry. It is an expanded state of awareness, in which one can be fully aware of
the sensory data from the environment, (sound, light, temperature, etc.) and at the same time can develop awareness of other data sources as
well, such as past lives, out-of-body information, information from guides, one's inner self, etc. Neither state can "make" you DO anything. You
are able to maintain your faculties for choice and value systems, including choosing to follow suggestions from the therapist or not. Hemi-Sync®
is designed to leave control in the hands of the listener as well. In this sense, it's somewhat related to self-hypnosis. Hemi-Sync® does not
"make" you do anything. It simply creates an effect that helps you move into a certain state, providing that you relax and are open to
responding to the Hemi-Sync® process.
Q: Are Hemi-Sync tapes subliminal?
A: No. Subliminal recordings have the intention of embedding a particular thought in the mind of the listener by recording words at sub audible
levels, often at high speeds. Hemi-Sync® sound patterns, although recorded at a sub audible level, are not verbal messages and are not
recorded at high speed. The purpose of Hemi-Sync® sound patterns is to assist you in obtaining the focused brain state you desire.
Q: Some Hemi-Sync tapes have sections in which the voice is too low for me to understand. Isn't that subliminal? Or is it a defect in the tape?
A: No to both questions. By the time the voice becomes low in volume, you are in an extremely relaxed state or perhaps asleep. The words you
may not understand are simply a repetition of earlier sections of the recording. They are repeated for purposes of reinforcement, at a very low
volume so as not to interfere with your state of relaxation.
Q: Is Hemi-Sync recommended for children?
A: All nonverbal recordings are fine for children. With verbally guided titles, we recommend you listen first and then decide based on your child's
level of maturity.
Q: How does Hemi-Sync® Compare To Other Products?
A: We occasionally receive inquiries from individuals desiring to know how Hemi-Sync® compares to other brain wave products they may have
heard about. It would be inappropriate for us to comment on specific products or technologies but following are some observations we can make
with regard to Hemi-Sync:
Robert Monroe's pioneering work with hemispheric synchronization (Hemi-Sync) sound patterns inspired an entire industry of mind/brain
products and technologies.
Hemi-Sync is a technologically sophisticated process that has been awarded three U.S. patents.
With millions of products sold worldwide, Hemi-Sync® has been shown to be a highly effective, safe, time-proven technology.
Improving the efficacy of Hemi-Sync® has been a continually evolving process—which we have remained committed. Today's Hemi-Sync® has
been refined with over 50 years of research and development and is supported by numerous studies, reports, articles and testimonials available
at www.Hemi-Sync.com. Hemi-Sync® has been scientifically and clinically proven to be effective.
Over the years, the Hemi-Sync® process has evolved into a sophisticated multi-layering of Hemi-Sync® signals—"designer mixes" of sound
frequencies, fashioned to be optimally effective for a given application. Naturally, Hemi-Sync® sleep products incorporate predominately delta
frequencies; learning products predominately beta and so forth. However, these designer mixes are supplemented with special sound frequencies
which enable the desired result. This is the "key" to the effectiveness of Hemi-Sync.
Ongoing Hemi-Sync® research has resulted in the development of scores of individual products for specific applications such as focused
attention, stress reduction, meditation, sleep enhancement, and pain control, to name a few. Other Hemi-Sync® products are available as a
series (some of which are progressive in nature) such as the Gateway Experience® In-Home training program for exploring states of
We do not recommend using Hemi-Sync® in combination with other devices or technologies that influence brain activity.
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