HEMI-SYNC



Hemi-Sync® Audio Technology

What is Hemi-Sync?

Hemi-Sync is a trademarked, state-of-the-art audio technology based on the natural functioning of the brain that encourages coherent brainwave activity. Our brains produce waves or patterns of electrical activity. Different patterns indicate different mental states, such as rest (occipital Alpha), deep sleep (central Delta), meditation (central and frontal Theta), physical activity (wide-spread Beta). Hemi-Sync's audio binaural beats influence these brainwave patterns and in concert with other components of the Hemi-Sync process provide experiences in focused states of consciousness.

Used at The Monroe Institute, Hemi-Sync becomes part of an entire learning process ; a combination of multiplexed audio binaural beats and pink sound (or music), verbal suggestion, relaxation exercises, guided imagery, group dynamics, and an educational curriculum all carefully crafted to engender first-person experiences of focused states of consciousness. Hemi-Sync influences brainwave patterns and alters states of arousal. Hemi-Sync programs provide participants with the opportunity to experience focused states of consciousness.

Hemi-Sync does not employ the use of subliminal suggestions. Hemi-Sync is designed for listening through stereo headphones or properly placed stereo speakers. The versatility of Hemi-Sync gives the basic technology an almost limitless range of applications for mental, physical, and emotional well-being. The technology simply and effectively allows you to involve your own total capabilities and direct them as you choose. It can be compared to a powerful software program that facilitates extraordinary levels of performance and productivity, guided by the intention and desire of the listener.



How Hemi-Sync Alters States of Consciousness:


In addition to verbal instructions, this auditory-guidance process involves carefully constructed blends and sequences of stereo sound patterns designed to evoke beneficial brainwave states through neurological mechanisms.


Right and left auditory input is combined in the brainstem's superior olivary nucleus and routed to the reticular formation that, in turn, uses neurotransmitters to initiate changes in neurological activity in the thalamus and cortex.

While many Hemi-Sync applications contribute to wellness, they are not intended to replace medical diagnosis and treatment. Hemi-Sync simply and effectively liberates your inherent resources to function at their maximum capability. As you become familiar with the Hemi-Sync process, you will discover how you will achieve more and more with this invaluable, effective consciousness tool.

  • Use Hemi-Sync cassette tapes or CDs with any type of stereo headphones or with speakers positioned to provide separation of the sound going to the right and left ear.
  • Do not use Dolby® or other noise reduction systems.
  • Do not listen to Hemi-Sync while driving or operating heavy equipment or if you have a history or tendency toward seizures.
  • Do not use Hemi-Sync with so-called light and sound devices.

Hemi-Sync Reaseach Page Click Here

Hemi-Sync Journal About Us Here


What Hemi-Sync users say:

Hemi-Sync tapes catalyze necessary changes I have been wanting for some time. - J.K. Metzingen, Germany

I used to have trouble sleeping. No longer! - C.G., Raleigh, NC

These tapes have made a positive impact on my life. - C.R., Pittsburgh, Pennsylvania

Immediate pain control results. Thanks a lot! - V.S., Oxnard, CA

I have been amazed at my developing intuition. - B.B., Ontario Canada

I have greater clarity of thought and increased creativity. - J.S., Decatur, TX


The versatility of Hemi-Sync makes it valuable for an almost limitless range of applications. When you know what you want to do; Hemi-Sync effectively concentrates the inherent resources of your mind, brain, and body to accomplish your purpose.

Emotional Processes

  • improve self esteem
  • support psychotherapy
  • treat substance abuse
  • foster self-confidence
  • moderate hyperactivity
  • overcome shyness
  • develop spontaneity
  • achieve serenity
  • surface blocked memories
  • ease social interactions
  • access feelings
  • eliminate self-sabotage
  • overcome irritability
  • improve self-control
Sleeping and Using Sleep Time
  • overcome sleep disorders
  • reduce need for sleep medication
  • dream recall
  • facilitate lucid dreaming
Dissociative and Transcendent Experiences
  • deepen meditation
  • facilitate awareness
  • access intuition
  • move beyond the physical
  • explore focused states of consciousness
Productivity and Mental Performance
  • reduce exam tension
  • cope with interruptions
  • eliminate mental wandering
  • learn foreign languages
  • increase productivity
  • counter A.D.D. and A.D.H.D.
  • learn musical instruments
  • master challenging subjects
  • improve classroom atmosphere
  • recover lost abilities
  • integrate sensory input
  • stimulate mental receptivity
  • improve artistic ability
  • enhance self-expression
  • improve reading comprehension
  • overcome mental slowdown
  • handle pressure
  • improve clarity
Pregnancy and Childbirth
  • make up for missed sleep
  • ease physical stress
  • counter nausea
  • facilitate recovery
  • energize breathing

Hemi-Sync® is a registered trademark of Interstate Industries, Inc.
© 1997-1999 by The Monroe Institute.


The Monroe Institute was founded in 1985 as a 501(c)3 nonprofit research facility, educational center, and membership organization. The Institute is devoted to the premise that focused consciousness contains all solutions to the questions of human existence and that first-person experience of such states provides something of value.

The Monroe Institute tapes encourage the evolution and growth of human consciousness through personal exploration of profound states of expanded awareness. Many who attend programs develop a different overview, a changed perspective from which life's experiences seem to take on new significance. There are now scores of tapes ans CDs incorporating hemi-Sync for a wide variety of applications:

  • Meditation
  • Spiritual growth
  • Profond relaxation
  • Stress reduction
  • Heightened creativity
  • Problem solving
  • Focused attention
  • Accelerated learning
  • Sleep enhancement
  • Pain control
  • Physical wellness
  • Pregnancy / childbirth
  • Behavior modification