SHADOW HILLS, Calif. – Alyson Moore is using a bundle of sticks to convey the sound of walking through snowy woods.

She's a foley artist, and what she's doing is syncing sound effects with picture. 

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"This foley stage is two-levels which is kind of interesting I don't know if there's any foley stage like this," said Moore. 

This foley stage uses surfaces like different types of flooring, as well as props, to create everyday sound effects that are added in post-production to various forms of media to enhance audio quality. 

"Belly dancer's scarf that I used in Frozen for the sound of icicles," said Moore. 

Moore's story is one of many featured in the upcoming documentary titled Making Waves: The Art of Cinematic Sound, which goes behind the scenes to reveal the hidden power of sound in film.

"It's the unsung hero," said Midge Costin the film's director and producer, as well as a veteran sound editor herself.

She made this film to show how important sound is and that it's more than its technical reputation, it's an artform that makes an emotional storytelling impact.

The documentary took nine years to make and shares insight from some of the entertainment industry's most legendary directors. 

"Sofia Coppola, Christopher Nolan, I mean these guys, they all appreciate sound so much and they say that sound is 50 percent of the movie," said Costin.

Sound in many ways is tied to imagination, which is something director George Lucas, along with his sound team, had to work with while creating characters like Chewbacca for Star Wars, to make them seem real.

To do so, they spent an afternoon with a bear named 'Pooh,' coaxing it to say different sounds. 

"They way they got it to make sound was to show it bread, it loved bread," said Richard Anderson.

"The bear would go 'grr grr,'" added Ben Burtt.

The best Foley art like Moore's should be so well integrated that it goes unnoticed by the audience.

Which is why giving a voice to sound in the Making Waves documentary means so much to her.

"Just to cover the whole sound is such a huge endeavor, and I think she's done a marvelous job, and I'm so proud to have been a part of it," said Moore.

Sharing with the world how your sense of hearing truly immerses you in the story that you visually see.