Overview
if this doesnt work refund the game and repurchase it then try this again, dont start titanfall until this is done. if this is confusing let me know and ill try to make this more simple.
what to do
Locate the Steam file in File explorer, it should be under “This PC” or the computer monitor icon (Not the desktop icon) then select the local disk drive or whatever Steam was downloaded to.
click “Program files (x86)” or “Steam” if its on a hard drive.
open up 2 file windows and locate the “SteamsteamappscommonTitanfallvpk” directory in one window and the “SteamsteamappscommonTitanfallbinx64” directory. (NOTE: You must have 2 windows open for this to work)
drag the “cam_list” text document from the “vpk” file to “audio_installer” in the ‘x64’ and place it directly on the audio installer, it should start installing it. (NOTE: it will still bring up the error when you launch the game but the audio will be fixed)
screenshot by Arthur 狼
Their post [link]