Eminem recently sat down with his manager Paul Rosenberg for the podcast "Paul Pod: Curtain Call 2," where Em discussed the discussion surrounding his vocals and delivery on MMLP 2 in 2013. 

During the sit-down, Em spoke about recording around the album, stating "Actually at that time period, I don't know if we've talked about this publicly, but I know me and you have had the discussion about, there was a few years where, my tinnitus was getting really bad. The ringing in my ears was almost louder than the music so what started happening, is slowly but surely over time, I started putting extra mid-range in my voice." 

He added, "Because for me to get it out and be able to hear it, for whatever reason, that was the tone that was easiest for my ears to hear the inflections and shit like that. And as we went to LA and saw that doctor, and the tinnitus started getting better, I pulled back on the vocal a bit. But going back and listening to that shit now, I didn't leave any gaps, everything was like, there was no parts to be able to breathe."