Addons cannot.
But you can try to scan and extract the source code of ESO, if the .mnf files contain the audio files somewhere.
You can use this tool to extract the eso files:
https://www.esoui.com/downloads/info...okBrowser.html
https://www.esoui.com/downloads/info...tractData.html
Not sure what format they use and how you would be able to play them then.
Maybe UESP knows more about it, head over to this website and search there, as it contains info about ESOExtractData tools e.g.
https://en.uesp.net/wiki/Online_Mod:EsoExtractData
But as I have never seen any of the audio files around so far I bet they are not extractable or playable from these files.