This auditory illusion is called a binaural beat. For example, if a person hears a tone of 405 Hz in one ear and a tone of 415 Hz in the other, they would be hearing a binaural beat with a ...
Then, she introduces her audience to binaural beats. “In case your mom didn’t teach you, listen to binaural beats and take a 15 to 30 minute nap,” she wrote. The sound playing in the background ...