STEAM will download the appropriate Fallout4 - Voices.ba2 for the language version you have selected. Possible Fixes: Delete the 2.5GB file in your Fallout 4 data directory called: ' Fallout4 - Voices.ba2 ' Use the STEAM verify system to have it re download that 2.5GB file to your P.C. Question: Do you have any mods? Mods for changing the dialog options? There is a part of the game engine that reads the audio wave form as it is being played back and forces the 3D character model to be animated / manipulated in time with the playback of the audio file thus making it appear that the character is speaking. games.) work is that there is a single archive file that holds the actual audio data for a given supported language like English or French or Japanese. Side NOTE: The way that Fallout 4 (And most of the BETH. FUZ files used in the audio dialog playback. My best guess is that there is something broken in the.