Comment from MDLQA-379:

Tried it multiple times got my volume up full and no beep. Tested on Firefox 4.0, Chromium Daily Build, Opera latest release all of which had no success. Firefox 3.6 offered to play it in VLC media player and even then it had no sound. It was passed in QA1 but the test was run on Windows and I'm on Ubuntu, I'm not entirely sure it's not an issue with my sound setup. So I'm going to when I get chance (later today/tomorrow) run it on a different computer and a windows one.

If someone else can run it and get it working feel free to past the test if it won't work on my other Ubuntu machine I'll open a bug on it.