No Sound in HTML5 and Google Chrome after update to 13.10

I fixed it. Here is the complete journey:

I tried to install a new version (30.0.1599.114) of Chrome with a deb package.

Installation went O.K. but Chrome still said: Version 24.0.1312.52 in "About Google Chrome). Sound in HTML5 Players still didn't work.

I deleted the ppa. Installed deb package again. Still the same.

Then I moved my profile folder. Restarted Google Chrome and suddenly I had the new version. And HTML5 sound works.

To move the profile folder:

mv ~/.config/google-chrome ~/.config/google-chrome_bak

This will delete all your passwords and favorites etc. But if you have google chrome syncronization you can recover it.

I tried the radical solution of moving the config folder and it worked, but I was unsatisfied with the fact that I lost all my distro-specific config.

So after restoring it and looking deeper into the matter, I noticed that in YouTube (where I found the problem; hadn't checked anywhere else), I had the videos muted. After unmuting it worked.

I know this sounds rather dim-witted, but maybe this answer will help someone else before making any drastic changes!