UP FEF-3 Dynamo Mod Issue

[SmeagolTheRailroader]

Hello all,
I'm in the process of creating a sound mod for the FEF-3 Dynamo. However, there's a strange bug that's popped up where no matter how fast the camera moves or no matter how far away the camera moves from the locomotive, the audio never seems to get quieter or have the doppler effect. I've included a youtube video showcasing the issue as well as a link to the mod as it stands so that you can pick at that code to see what the issue is. Can anyone help me?
https://www.youtube.com/watch?v=o6Zbgdu1h3o
https://www.mediafire.com/file/hil38ahu2caqs5f/UP_FEF-3_New_Dynamo.rar/file

[mrennie]

The problem is that Doppler works only on mono recordings, not stereo. Both of your wavs are stereo, so the easiest solution is to save them as mono.

Stereo sounds can be made to go quieter as you get farther away from the origin of the sound, but you might need to use a different volume curve (and using the control value ListenerDistanceSquared on the x axis).

[SmeagolTheRailroader]

Converting to Mono worked like a charm! Thanks Mike

[Chacal]

Now available in the file library.