EQ wave measurement?

DrDerpCannon25

Prominent
Jun 12, 2017
14
0
520
How do I measure the full frequency spectrum, I'm trying to make a custom eq preset in realtek hd audio driver to make it easier for me to hear some of the sounds in rainbow six siege. I want something free if possible. I just need to see which frequencies to accentuate, and which ones to turn down.
 
You can still use external mike with your phone (unless you're struck with one of there super-duper jack-less Fruit devices).

But this is still going to be difficult, because what you hear depends a lot of where you hear it from. Even if you sample the LineOut from your sound card, it will not be what you hear.