How can I view filename and location of embedded audio files

I have an old .pdf document (probably made in 5 or 6) that has .wav audio files embedded in it.

It plays the audio every time it moves from page to page. This works fine.

I want to see what the file name is.

I tried to use the Rich Media tool, but can't see any object on the page that represents the audio file.

How can I see the audio object?

And if I want to change the audio file how do I delete the old one if I can't see it.

Thanks.