default crossing gate sound?

[CSX6063]

i have the smmdigital crossing gates and i have two of them placed. but how do i get rid of the default bell sounds for the old gates? i can't figured that part out. im doing this on the sanbernadion-barstow explore route. i got the gate placed. but like i say i still have the default bell sound.

[CSX6063]

never mind get some one to either lock this thread or remove it. as i have figured out what i needed.