Where did the audio clip come from?
Welcome to the forum.
Along with the request for info above, and John T's suggestion for ripping the Audio with Audacity, for Import back into PrE, can you tell us about the Audio portion of your file? The great, free utility, G-SPOT, will give you the details, or it should. Post a screen-cap from G-Spot, and we can see the details. Here is a look at what you want to check: