@BillYo414 posted:.... what about speakers in scenery? Has anyone tinkered with that? ...
Yes, I have two Sound Bloxx self contained speaker sound system boxes at work.
One with steam sounds placed between two of the main steam TT's whisker tracks and another one with Diesel sounds in my Diesel service yard. They provide a tasteful essence to the immediate area.
Sound Bloxx also made a variety of industrial and farm sounds. I have had them for a long time, not sure of current availability.