is there a way to make the horn of the train like a msts horn (what i mean is when the train passes the horn fades away faster) please tell me how (ts2009)
There is one simple answer to your question: you can't. Trainz does not have a Doppler effect, which changes the pitch of the sound as it passes, so the horn can and will not change pitch.
Sorry to disappoint you, but that is the truth. Auran should see the light and build in a Doppler Effect with the next version, just like MSTS.
Thankyou for your time, and Happy Trainzing!
Scott.