It's not something I've ever thought about, so I wouldn't say I "got used to it". To be honest I've never heard this complaint, but I kind of understand what you're talking about. But my breathing sounds the same, and I definitely can't hear my footsteps at all. It just feels like wearing earplugs. Yes things sound muffled, that's the whole point. I'd say give it a little time and see if you adjust. Does transparency mode fix it for you?