Latest Impress.
Windows 10.
.WAV files have been added using Transition panel.
Audio
wav file was added as link or as embedded?
Sorry, just seeing your question. Using Slide Transition, I add sound from a file. So, I would say this is NOT a link, but embedded. Additional experience suggests the .wav file and Impress presentation file should be in the same folder, when sound is added, and remain there.
I have a possibly related question, but will mark this one as answered. Thank you.
Answered: it appears Impress will follow the full path for the sound. I infer from this that the presentation file and sound file should remain in their respective folders. IF you plan to share or move the presentation to a new folder, THEN first put the sound and presentation files in the same folder, AND re-connect the sound files using Slide Transition.
-OR-
Is the audio actually embedded within the Impress file?