Originally Posted by Albus

No problem, Mr. Impatient. If you wish to have a quicker response as it seems you are querulous and incompetent of waiting, you may want to visit the Support IRC as you might find an answer to your question there more rapidly. Don't forget that most people who will help you here are volunteers and do not have to answer your query, so don't expect to find a resolution as fast as possible.

To answer your question, check that the file is actually in a .wav format. If it is, /dl yourself in-game and see if it works then. If not, we can continue from there.