I saw the following on another list.  Hope it helps:
few days ago and muted the audio by default.  To unmute it and restore the
audio volume to normal using JAWS, follwo these steps:
1. Load the page containing the video you want to listen to.
2. Turn off the virtual cursor vy pressing JAWS key-Z.
3. Starting from the top of the page, tab repeatedly until you reach the
unmute button.  You will have to tab quite a bit until you fianlly land on
it.
4. Once you are on the unmute button, press the space bar and then press the
up arrow key repeatedly to increase the audio volume to the desired level.
Finally, press JAWS key-Z again to turn the virtual cursor back on.  HTH
Gerald

-----Original Message----- 
From: james taylor
Sent: Monday, October 07, 2013 7:20 AM
To: [log in to unmask]
Subject: Hi everyone:

Hi everyone, I'm wondering what is up with youtube? I can still download
songs but when I go to listen to them before I doo that, I don't a
commercial or the song I'm trying to download. I can still download the the
song, but I would still listen first. If anyone has any ideas, I would
appreciate them. I mean I have the latest edition of adobe flash player, so
I don't know what's going on.
jim