Prior to a recent Obsidian update (not sure which) I was able to play MP3 audio via the Audio Player plugin.
This no longer works.
I have not changed any of my notes and links.
Things I have tried
The obvious think to help diagnose would be to revert to an earlier version of Obsidian but I don’t seem to be able to do this. I tried to go back to Obsidian.1.1.16 but still ended up with the latest version (Obsidian.1.2.8)
The code that works (used to check the Audio Player still works) is
![[Brigg Fair - Joseph Taylor.mp3]]
The code that fails (generated by Obsidian) is

To be clear the latter played as expected but now does not. Also while the files and vault are held in my Dropbox, external picture files display properly
I believe that the issue is Obsidian not being able to access the external music file as the playback slider shows orange in the working player and is empty in the failing one, as shown below.
I think this is probably a change or bug in the way Obsidian and Audio Player exchange data but I’m somewhat out of my depth in delving into the goings on.
Two community plugins I saw with audio in their names don’t seem to look like your screenshot. I had never done it before, but just tried to embed an externally linked mp3 in Obsidian 1.3.2 and 1.1.16. All I get is a broken link icon (no plugins installed).
The file link is created by Ctrl+Left clicking the file and dragging into an Obsidian page.
Now the annoying bit.
I just tried linking a different file (on my D drive) and that works
sooo I tried re-linking the failed file and that worked
but the failing code is still failing
I thought that there would be something different in the code buuut no the two are identical except that the non-working player has no empty line before it.
Inserted a blank line and it sprang to life [FX: Much gnashing of teeth]
Looking at all my other similarly linked files and they are all now working with no action taken by me.
I notice that the Obsidian version is now 1.3.5 so I’m giving Obsidian a Hard Stare - I have no other explanation.