Binaural beats or binaural tones are auditory processing artifacts, or apparent sounds, the perception of which arises in the brain independent of physical stimuli. The brain produces low frequency pulsations or “beats” when two tones are presented separately at slightly different frequencies. Binaural beats involve different neurological pathways than ordinary auditory processing.
For example if a 340 Hz tone played into the right ear and a 330 Hz tone was played into the left ear the brain is entrained towards the beat frequency of 10 Hz. Since this alpha range is …