Look for the option to change it directly if the pack is already installed.
Go to the tab and choose English from the dropdown menu. fallout 4 english voice pack link
: Rename your desktop copy of the English file to match the name of the file currently in your Data folder (e.g., rename Fallout4 - Voices.ba2 to Fallout4 - Voices_fr.ba2 for French) and overwrite the existing file. Third-Party Mod Links Look for the option to change it directly
: Change the Steam language setting back to your preferred text language and let it update. fallout 4 english voice pack link