That might be a problem, that's a 5V board, many of the turbines with the correct sound are the 3V boards.
Try this Bantam Turbine Sound File, it's a different one that is in your locomotive. I don't know if it's got the right sound, only to know is to load it and see.
There is a larger Railing S2 Turbine with a 5V board, but no sound fine on the product page.