It is said in some studies that certain frequencies can increase intelligence.
These are usually considered 15 to 30, and even 40hz.
In case of isochronic, 15 is very hard to hear.
However, binaural creates 15 hz by combining two different frequences so the difference between them is 15 hz.
So, there are plenty of apps and programs designed to create frequencies. You can pick whatever frequency you want.
40hz seems to be popular.
Now, its hard to find exactly which frequency is best for intelligence, but 15 to 40 seems to be the range for intelligence.
Some study suggests that binaural beats can increase intelligence by 20%.
Thats a significant increase, and also if we are to trust YouTube comments, plenty of people claim to have benefited from binaural beats. They claim it improves focus.
I have noticed too that certain frequencies make me alert and focused, basically having the effect similar to that of drinking plenty of coffee at once.
I wanted to explore these more, because 15 to 40 is a large range of frequencies, and I kinda want to know which one is best.