мой разговор с адобовским саппортом:
Steve: Hello Michael! Thank you for contacting Adobe Customer Service.
Michael : Hi
Michael : The problem is that i do not hear any sound from youtube videos
Michael : How can I resolve it?
Steve: I would like you to know that you need to increase the volume while the video is played.
Michael : not funny
Michael : i am not an idiot smile.gif
Steve: I apologize.