Interesting application, worth checking out. Sleep induction mode needs improvement.

This application is pretty cool, but I am skeptical if the beats produced have any real physiological affect or its just your brain getting used to the repeating sounds that makes you drowse off and fall asleep. None the less this application is worth checking out.

For sleep induction mode, I begin to drift off into sleep at the low frequency sounds but get jolted back to reality when the sound goes back up to the higher frequency. I think it would be a lot more effective if the frequency started off high and goes down to a slow 1 Hz over a period of 10 minutes and stops, or continues at the low that frequency indefinitely.

Itzkovi about Mind Wave - Binaural white noise