by wdbames » November 28th, 2005, 10:55 pm
My understanding is that Binaurals are a method to put Your mind into
a hyppnotically receptive state. Under Hypnosis You are in what is called a theta state. Brainwaves from 4 to 8 Hz, Lower frequency being deeper in trance. You can't just produce a 4Hz tone, because it is too low a frequency for the ear to hear. The solution? Produce higher tones, but make the left ear and right ear hear the same tone with a 4Hz offset.
It turns out You can take the spoken audio, make it stereo if it isn't already, and raise or lower the frequency of the audio in one channel
by 4Hz, then Output the whole thing as an MP3 Audio file. The result is that it fools Your brain into thinking it is recieving a 4Hz tone, and the brainwaves fall into step with that tone.
The final effect being, of course, that You fall into trance more easily.