Did they lower the train horn or is it just me?

I’ve been seeing some old Astro games from 2017 and I’ve noticed that the train horn back then was way louder than it is now, now I can tell that it’s lower and I’ve been to a couple of games last year where the Astros hit home runs and in a way you can hardly even the train at all and that at the game now imagine trying to hear it on the tv. Man I remember watching game 5 of the World Series in 2017 and hearing that train horn, man it sounded so badass it would get me pumped up! But idk if they really did lower the train horn but if they did let me know why