Brainwave Entrancement is trickery of the mind by using two pitches of frequency on the two channels of headphones to emulate the sense of a third lower, sub-40hz frequency as the differential between the previous two. In theory this should cause the listener to sync with the frequency differential and “entrance” portions of their bio-computer to it. This effect was discovered in 1839 by Heinrich Wilhelm Dove. Gerald Oster, published “Auditory Beats in the Brain” in a 1973 issue of Scientific America. Robert Monroe later began experimenting with this method, founding the Monroe Institute in 1978. The first Hemi-sync audio was released in 1975. It is also of interest to note that lightwaves may also be a source of entrancement as in the case of the Dreammachine, Led goggles, or other stroboscopic applications.
| Frequency range | Name | Usually associated with: |
|---|---|---|
| >40 Hz | Gamma waves | Higher mental activity, including perception, problem solving, fear, and consciousness |
| 13–40 Hz | Beta waves | Active, busy or anxious thinking and active concentration, arousal, cognition |
| 7–13 Hz | Alpha waves | Relaxation (while awake), pre-sleep and pre-wake drowsiness |
| 4–7 Hz | Theta waves | Dreams, deep meditation, REM sleep |
| < 4 Hz | Delta waves | Deep dreamless sleep, loss of body awareness |
(The precise boundaries between ranges vary among definitions, and there is no universally accepted standard।)
Useful Links:
Hemisync
Brainwave Generator
Cool edit pro Features a plug-in for making Binaural Beats by processing stereo audio clip’s pitch.
Video of Robert Monroe
Frequency=Quantumleaps Binaural Beat series
List of cymatic frequencies and their purposes.
