system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: When dubbing a movie in a foreign language, how do they edit the actors voices out to replace them?

I'm watching a series (Vikings) right now and i have the option to switch between English and German. The sound effects sound the same in both versions, so i assume they didn't recreate *all the sound effects* afterwards. But you can't simply cut out the actors voices, can you?

Edit: Thanks guys, i actually learned a lot!
gpt
Audio in film is made of a number of different "tracks." One contains all of the actors voices recorded by the on-set mic or during the dubbing process, while others contain music, sound effects recorded on set, and other audio put into the film.

When they replace the voice acting of a film, all they have to do is record the lines in the new language and replace the original voice track -- the rest of audio remains the same.