There's also the Learning Programs here on soundgym if you go to the learning tab and sign up for one of the courses. There's one for mixing & mastering, sound engineering, synthesizing, live sound, and electronic music production. I've completed all of them and ALL of them go into EQ at various points in the course, being explained by different people.
hi. what should be the frequency range for hearing in 19-21 years old? mine is giving very bad results in ear doctor test. is there any way to improve it? will it make hard for me to pursue a carrier in mixing and mastering?