How Do I Change The Audio Language For Back 4 Blood On Steam?

1. Launch Steam and open the Library menu.
2. Locate Back 4 Blood and right click on the game. Choose the [Properties] option.
3. In the menu that opens, choose the [Language] tab.
4. Left click on the drop-down menu that appears and choose your desired language. A small update for the game will occur. The game UI and subtitle languages will be changed when you next launch the game. Audio will change as well, if that language is available. 

Note: Supported Audio languages are displayed on the Steam product page.