Binaural beats, headphones and earbuds | Higher-Music.com
Posted By gluhring on August 2, 2009
The following is from J.S.Epperson’s blog at higher-music.com…
Binaural beats are an interesting tool: they directly affect your brainwaves and they can alter your mood, behavior and even your consciousness. This is accomplished by inducing brainwave patterns through the use of stereo sound.
Binaural beats are the byproduct of how your brain perceives the nuances of stereo phasing: slightly different tones are played into each ear and your brain perceives the difference of the tones as a beat frequency. Clearly, the stereo directionality of the binaural beat carrier frequencies is important.
Let’s say that we play a 220 Hz carrier tone into the left ear and a 226.5 Hz carrier tone into the right ear. While processing the audio stimulus, the superior olivary nucleus portion of each hemisphere of the brain will also perceive a 6.5 Hz beat frequency, a frequency associated with the frontal midline theta rhythm.
Obviously, headphones make easy work of the stereo requirements of the binaural beat carrier frequencies. The left channel is fed directly into the left ear, the right channel is fed directly into the right ear, and your brain does the rest of the work. (It is perhaps worth mentioning that it is possible to effectively listen to binaural beats on speakers, but to get the best results, great care should be taken in the positioning of the speakers relative to your head.)
Binaural beats, headphones and earbuds | Higher-Music.com.
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