Hello I'm playing TSW on the Xbox One since the release. A great game but the sound of the train is to low in comparison with the menu sound or the speakers. I have to adjust the volume very up to hear the train.
https://forums.dovetailgames.com/threads/class-166-sounds-2r05.2389/ This is not isolated to the Xbox, I'm afraid. We've been pointing out that the interior and exterior sounds on GWE are quite low for a while now.