To truly "fix" the audio to modern standards, consider these community restorations: No sound during cutscenes or phonecalls! - EA Forums
Obtain an NTSC-US copy of the game. Copy its MOVIES folder and its SOUND\SPEECH folder directly into your PAL game directory. Nfs Most Wanted All Sounds Cutscenes And Cop Speech Fix
Replace missing/corrupt audio archives
: If cutscenes still skip, ensure your movie filenames match your game language (e.g., changing _pal to _english_ntsc ) as the game may skip videos if it can't find the version matching its internal settings. To truly "fix" the audio to modern standards,