Could you try it again and see if it works for you? What version of IE and Windows are you using? Also try hitting F5 to force refresh of all javascript as I've been changing it often and your cache might be old.
Sorry Robert I was not around and did not get an e-mail notification that you posted

I just tried again after clicking f5 and I still get the same results, no sound but constant mouth movement after user input sent.
I'm using internet explorer10
version 10.0.9200.16635
update versions: 10.0.7 (KB2846071)
PC specs and OS specs are in the screenshot below
UPDATE: I just tried on my wifes computer which also has windows 8 Pro and the same version of IE and it works as it suppose to, Maybe something is wrong with Java on my end (insert scratchhead smiley)