I am considering a 13 hour train ride later this summer. I plan on wearing earmuffs (NRR 27 dB), but I worry that this much time of continuous train noise might permanently increase my tinnitus. I can't find noise levels for Amtrak, but have found a few studies about excessive noise associated with rapid transit. Has anyone taken a long Amtrak trip? And, if so, did it spike you? Any advice is greatly appreciated!