You're listening to 20,000 Hertz.

You might not realize this, but when you watch a movie or a TV show,

99% of the sound effects you hear weren't recorded on set.

If you have a character running through the woods, breathing heavily,

the wind blowing, and bushes rustling, all of those

sounds were added long after they shot the scene. Some of these sounds are put in by sound

editors. They have access to sound effect libraries with thousands of recordings, and they often

manipulate these using software. Other sounds are recorded live in a studio by people who use all kinds of objects and techniques to get them just right.

These people are called foli artists.

My name is Chris Moriana.

My name is Allison Moore.. My name is Allison Moore.

I am a Foley artist.

Chris and Allison are part of the Foley team at Warner Brothers Studios, one of the biggest and most successful studios in Hollywood.

What we're doing is performing live sound effects in sync with what's happening on the screen. This might include the rustle of a character's clothing, or the clank of their silverware.

But Foleywork goes way beyond just making noises. It's a performance.

So a large part of our job is to look at a scene and get creative and then make it come to life.

We used to be called Foley Walkers and now we're called Foley Artist.

And I think that's largely due to the fact that it is the performance that we are presenting.

If someone is running in dirt in high heels, Chris or I will be in high heels in the dirt running in sync with what's happening in the picture.

When we're walking a character, we can make that person more upbeat

or more downbeat. It's not just getting the heel, toe, and sink, it's getting the emotion

there and the little scuffs, and you can just put a lot of personality into it.

...