Re: Ambient Dialogue Fading Out
Nothing in the DxDiag that would explain that error.
That is a heavy modded game you have there, it is very possible that one of that mods cause the error.
But lets start with something easy:
Make sure Origin is closed.
Go to your "Documents\BioWare\Mass Effect 3\BIOGame\Config" folder and rename the "GamerSettings.ini" and the "MassEffect3Config.ini" to "OLD_GamerSettings.ini" and "OLD_MassEffect3Config.ini" > test the game.
If that don't helps delete the newly created "GamerSettings.ini" and "MassEffect3Config.ini" and rename the "OLD_GamerSettings.ini" and "OLD_MassEffect3Config.ini" back to their original names.
Then preform a clean boot and test the Game afterwards.
If that also don't helps it would be necessary to see if this is a mod problem.
Make a backup of your entire "Mass Effect 3" folder under ">drive<:\Program Files (x86)\Origin Games" and install a vanilla copy of the game. (if you don't have a backup of the vanilla game you need to re-download it)