DPOE Hearing test

Hi! I had terrible hearing loss and was damaged by antibiotics. What is the normal DPOE supposed to look like? I have 3 graphs from my pcp including a signal to noise ratio and a DP Gram.

I think I regained some clarity in my hearing but still have bad speech comprehension. I should quit drinking coffee right since it narrows blood vessels?

What does DPOE stand for? If you had a standard audiogram there’s a brief description of how to read the results here:
http://www.hopkinsmedicine.org/hearing/hearing_testing/understanding_audiogram.html