Thanks a lot for responding. That's weird. Could I ask please what operating system you are using (Just realized that might be silly with you playing the windows version, but you're not on Linux with chrome but using a virtual machine to play it on Windows?)
I couldn't see anything from searching like an immediate problem to point to from Unity, and it worked for me in the latest Chrome no problem, same volume. So if I can have more details then if it comes up again for anyone else I can have more known factors to cross reference I'd really appreciate.