There are a few different versions of this movie with different audio tracks. Dreyer himself criticized a bastardized version in the 1950s that changed the vignettes and audio to better fit for audiences of the time.
I saw this movie long ago from a poor reproduction with what I assume was the original score and it was pretty good. Years later showed it to someone else and we saw the remastered Voices of Light version. It had been elevated to a true masterpiece.
The higher video quality really lets us see Dreyer's decision to not use the extremely common heavy makeup found in the silent film era. The missing puzzle piece was found in the form of perfectly fitting vocals. Dreyer will simply have to excuse us for modifying his film.