Pirated repacks often strip out languages except English/Russian to save space. They inject a hack that reroutes audio calls to a low-quality 22kHz OGG file. You will never recover original Extra Quality sound without a full clean reinstall.
For a cinematic "Extra Quality" look, turn these in the game menu. While competitive racers turn them off f1 2013 change language extra quality
This only changes text, not audio commentary. or you have a non-Steam version
If the in-game menu doesn't show your language, or you have a non-Steam version, you must edit the configuration file manually. This is the most reliable method for installations (common with repacks like FitGirl or KaOs). f1 2013 change language extra quality