by Calimore » February 8th, 2015, 5:06 pm
After studying the binaural beats creation from The Monroe Institute, I started playing with the venerable software classic 'Brainwave Generator' to develop my own binaural entrainment technique. In general, I have found that it is good to start off around 14-20 Hz and work one's way down, as it is more likely to match the state the listener happens to be in when they start listening to a relaxation audio.
As my own binaural beat effects incorporate the use of 2--6 tones (most of which are in their own individual frequency states). I do have to generalize here. Typically though, I'll initially take the subject down to 8-12 Hz over the first 6 - 8 minutes, then back up a couple Hertz, then dip back down again to 5.5 Hz or lower. The idea is to seduce the mind into going deep by allowing a little give-and-take.
If the effect is going to last more than 30 minutes, I may briefly take the frequency down to 4 Hz or even lower, sometimes going as low as 2 Hz after 40 minutes or more, but rarely will I try to take a subject any lower than that as their mind becomes more resistant to suggestion at the frequencies most associated with deep sleep.
When one plots my frequency progressions on a graph, they almost look like roller coaster rides, starting high, then dipping lower, up again, then lower, then back up almost as high as at the beginning when the ride is finally finished. The tones themselves generally reflect the progressions also - rarely will I vary a tone's binaural beats without changing its frequency. I also like the multiple tones to form a pleasing harmonic, as I have a very fine sense of pitch for a non-musician.
I highly recommend checking out the binaural beat techniques of the Monroe Institute as well as those employed by other pioneers of the field, like Dick Sutphen. Through study, experimentation and sometimes plain old trial-and-error, these people helped to pave the way that the rest of us now more easily travel.
BTW: I also make use of a script written for Sony Audiology that converts any stereo waveform into a binaural beats file. Such a script could probably be adapted for use with Audacity - I don't know. Important thing is that no matter how you make your binaural beats effects, they should never sound too out-of-place or harsh on the listener's ears. Because if the effect is in the least bit bothersome, the user will listen to something more appealing, whether the beats effect actually works or not.
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