Passenger Trains > Metrolink F125 horn type

I was wondering what type of horn is used on the new Metrolink F125 locomotives. I have taken a recent video of the F125 locomotive in action, and the horn sound doesn't seem to exactly match any of the common horn types  I have seen in online videos. Also, do the cab cars use the same type of horn as the locomotives do? I'd like to load the proper horn type to my Metrolink sound-equipped model train.
Thanks to everyone in advance for your information.

https://www.trainorders.com/discussion/read.php?4,5386413,5386413#msg-5386413