How do movie makers keep unwanted sounds out of films especially older movies that didn’t have digital audio?

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I know they can add audio in post by Foley artists, but how do they keep sounds of equipment, people, or other background noise that isn’t wanted out of the movie?

I’m especially curious about older movies that were made before the rise of digital audio.

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9 Answers

Anonymous 0 Comments

A LOT of films were (and still are) shot “MOS” — That’s the industry term for silent. It’s the acronym for “Without Sound” in german.

According to friends in the movie industry, the movie El Mariachi (Robert Rodriquez) is a perfect example. It was shot MOS on a budget of about $7000 over a few weeks (basically a student film). Then it was sold to a distributor who spent a million dollars and two years adding sound to it, including actors voices.

Photography is only one part of the movie making process, and not always the most expensive part. Editing alone can cost more than the photography did.

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