I did an online test the way it was recommended but found it more difficult to try to relate each frequency to the same loudness. My understanding of words that he spoke was not very good. Results of that test were much worse than I expected. I question the results because I do not see similar results when I take another online hearing test. I think that we probably need different sort of headphones to try to keep as much of the background noise out as possible. Any recommendations on this subject?