Leo,
That does not appear to be a file we ship in the JMRI distribution (despite it being located in the JMRI program directory).
(We recommend not adding user files within the JMRI program directory as these are at risk of removal during installation; rather add them to the user files location which, in your case would be a sub-directory of `C:\Users\Railroad\JMRI\`)
What is possible is that this .wav file is encoded using an audio codec that we do not support - we only support 8 and 16 bit PCM format wav files.
To verify, would it be possible to send a copy of the audio file such that I can double-check the codec used and run it through some debugging?
Thanks.
Best regards,
Matt H
Matthew Harris