You can just use the voice recorder on your phone to capture the horn sounds....Thats what I did...And if you want some train horns go to... www.youtube.com and search anything that has to deal with trains and you can just record it from there...
alexweiihman wrote:The Ge website has some you can put on your phone.
And you can find that site here:
http://www.getransportation.com/na/en/downloads.html