The way that binaural waves work is someone will make a sine wave in audacity, at a particular frequency to mimic the alpha, delta, beta, or theta waves that have been recorded in brain activity.
Once a frequency is found, they take the track and duplicate it. They shift one track, either the original or the copy, to mifways between each arc of the alternate, so that your brain is forced to alternate focus between the left and right ear interchangeably.
There have been only recorded studies regarding how the brain patterns shiftbetween waves, depending on activity(usually sleep). There is no evidence that they help you transcend to another plane of existence, grow tits, grow vaginas, or alter your brain patterns in any way.
They also do not work without headphones. Instead you get "woowoowoowoowoowoowoo" Instead of the "wooWOOwooWOOwooWOOwoo" effect binaural gives.