brainaural
“Welcome to the most powerful brainwave entrainment generator on the web. Don't be fooled by its relatively simple user interface. This software is capable of producing the widest range of brainwave modulations available so far, such as binaural beats, isochronic tones, bilateral entrainment, modulated white noise, and more! If you are eager to start your own brain hacking experiments, the rest of this section covers the basics: the minimum you should[…]”