When you listen to a mixture of slowly changing tones on a dual binaural beat instrument, fascinating beat effects are heard. Binaural beats result when pure tones at slightly different pitches are heard by the two ears. The effect is different from a mixed tone beat phenomenon, because the tones are heard and processed separately by the auditory apparatus. Tones of slightly different pitches appear to have constantly shifting phase, and the source appears to move back and forth within the head at the rate of the difference of the pitches. You can experiment with this effect with a light and sound machine that generates controlled sine wave binaural beats.
Brain waves are the voltage patterns generated by the brain.
The brain contains some 100 billion neurons which operate by generating and passing electrical signals. The summation of all this electrical activity results in signals that can be detected and recorded outside the brain. Brain waves appear as irregular, somewhat repetitive waveforms, and are a mixture of many frequencies from less than 1 to more than 40 Hertz. Different brain wave patterns have been found to be associated with different states of awareness. Color Pulse A feature that has the device blink the lights to any music source.