I was an early adopter of CDs in the mid-1980s, and people often came to my house for a demo, before committing themselves to a purchase. One of my demonstration CDs was a very good steam train sounds one.
During one demonstration, the 'target' got up to stand in the centre of the room, for the best effect. A low-loader, similar to that above, complete with steam engine, sailed slowly down the street, exactly in time to the sound-track. Poor chap thought he was hallucinating.