A:Answer After looking on Google about this, I found it lists two settings in the Audio Format section of "Settings". If I'm not mistaken, and your sound via cable connection causes the sound volume to fluctuate up and down, you should check to see what the factory set it too. If the default setting is "Pass Thru" you want to change it to the other option which is "PCM". This should fix what some cable users describe as very annoying. That is...the sound constantly slowly decreases in volume, then increases back up in volume. Hope this helps.