Hi all,
I too am experiencing the no in-game audio problem. After several repairs, etc, etc, the only thing I can put it down to is launching from an external hard-drive. I copied the files over to my Macbook Pro's SSD, ensuring the correct default file path "/Applications/Zenimax Online". When opening Launcher from this directory, I had no issues with getting audio in-game.
The problem this causes is that my ssd is 120gb, and this game takes up more than 25% of that currently, requesting a minimum of half of this space. I have no problems with WoW running directly from the external, and I'd expect the same from ESO.
My question is - If the launcher app stays on the ssd, but the rest of the files (the "The Elder Scrolls Online" folder ~33gb) are located on my external drive, can I redirect to the externals file path, without having any audio issues or having to use up half of my computers storage?