What the hell have DTG done to some of the cab sounds, I decided to drive on Peninsula corridor & it sounds like there's a window open all of the time, the engine sounds in the cab has lost all of it's throb & there's no bass or thump from the engine. The same also applies to the 37, they've ruined it & I think they need to join forces with Armstrong Powerhouse & let them work on the sound.
The sound changes are unintentional and caused by the transfer of TSW1 content to TSW2. This has been fixed in some DLCs, and in GWE the sounds have actually been improved.
The 377 sounds for ECW still haven't been fixed - there's a whole bunch of missing sounds and whilst some do sound at the start of the journey, they'll randomly disappear and not return halfway through. The Class 375, made for TSW 2, is no better. I assume because DTG recycled the same sound setup from TSW 1, which TSW 2 subsequently broke.