The voice acting remains in English for all versions; these changes only affect the menus and subtitles. Are you playing the original version VR Case Files , and did these steps resolve the issue for you?
: Ensure your console's primary system language is set to one of the supported languages (English, French, German, Italian, or Spanish). Manage Game Content (PS5) Highlight the game on your home screen and press the Manage Game Content la noire how to change language