Why Silent Props Are One of the Most Important Secrets in Filmmaking

Shooting a scene is a delicate balance of making everything look and feel real while also controlling, as much as you can, every little detail about what appears in the scene itself. It’s why extras pretend to talk. Music usually isn’t playing, even for a dance scene. Coffee cups have nothing in them (usually noticeably, but we digress).

Every prop on a professional film or TV set has cleared at least two bars. It has to look right, and it has to sound right, which often means it has to sound like nothing at all.

This video from Insider follows prop maker Tim Schultz and prop master Scott Reeder through the craft of building silent props.

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Props Have to Solve Two Problems at Once

The visual side of a prop is what most people think about. Does it look real? Does it read on camera? Does it serve the story?

Props do a lot of heavy lifting in world-building, communicating character and setting without any dialogue. You want to pick items that show something about how a character lives or what was in their past.

But the audio side is a problem that usually emerges once you have a sound mixer on set, and sound mixers are very good at hearing things you don't notice.

As Schultz says in the video, "Props is always about solving a problem."

The invisible part of that problem is noise.

The Sound Department Can Hear More Than You Think

Production sound mixers wire talent with lavalier mics that sit close to the body, which means they're also very close to whatever an actor is holding, rustling, or setting down.

“I often say that a sound guy can hear grass growing when you're on location,” Schultz says.

Okay, maybe not, but they’ll hear everything else. Birds, a car down the street, that airplane zooming by overhead, everything. The dialogue track is the most protected element on a production set, and anything that competes with it becomes a prop department problem to solve before the action starts.

The 30-Year-Old Accident That Solved a Problem

The Friday Night Lights bar scenes in Season 1 needed pool balls that wouldn't overpower the dialogue track. Prop master Scott Reeder's first experiment was plastic ball-pit balls, which were quieter but wouldn't hold paint.

The actual solution came from a 1991 production, Necessary Roughness , where racquetballs had been used as a stunt cushion for an actor thrown onto a pool table, not for sound, but the incidental sound benefit stuck in Reeder's memory.

He painted them with a primer layer and a glossy topcoat to replicate the visual signature of real pool balls.

The other piece is knowing when to swap them in. Real balls go on the table when the camera can see the shot, fake ones when coverage moves to the actors' faces.

Props and costumes are part of the process that makes a world feel real, even when the audience never consciously notices it. If we see the real balls in one shot, we believe in them and can stop paying attention when the fake ones replace them.

Credit: Insider

Modifying the Real Thing

Not every silent prop needs to be a full replacement. For Tammy , Schultz needed Melissa McCarthy to use actual paper bags, one on her head, one on her hand. But real paper bags in the vicinity of a lav mic are a no-go.

He sprayed the bags with a water-and-glycerin mix (the same substance used to fake sweat on skin or condensation on beer bottles), then taped the interior to prevent crumpling.

The downside is durability, as the treated bags lost color and fell apart over several takes. For productions requiring extended bag handling, Schultz built a more permanent version using fibrous nonwoven fabric, the same material as coffee filters.

Remember, a hero prop has to survive the full production.

Fake Ice, Two Ways

Drinks carried near the face or midsection are a recurring audio problem because that's where lavalier mics are usually attached.

Shows with bar and party scenes require ice that won't rattle every time an extra picks up a glass. Plastic ice cubes solve the continuity problem because they don't melt, but they're still loud.

Schultz's preferred solution for sound-critical situations is silicone ice cubes, either molded in trays or torn apart. They float convincingly and produce almost no sound on contact. The practical upside for background actors is that they can handle drinks freely without the sound department having to pause and reset.

'Tammy' Credit: Warner Bros.

Vinyl Everywhere You Don't Expect It

Plastic is the most pervasive silent-prop problem on set because it's everywhere. Shopping bags, Saran Wrap, any kind of packaging… sometimes even clothing if it’s nylon or polyester.

The standard fix is transparent vinyl, which produces a duller, more controlled sound than plastic and can be fabricated to replicate the look of most common packaging. The Kominsky Method flower bouquet would have been buried in cellophane crinkles had Schultz used the real thing. The vinyl wrap looks identical on screen and disappears sonically.

Other Quick Fixes

Need to set a prop down near a mic? Try gluing neoprene rubber pads to the bottom of cups, plates, and even the soles of actors' shoes if their steps are getting too crispy. Neoprene sheets are cheap and available at any hobby or supply store.

Schultz's company, Prop TRX, is a commercial maker of silent props. If you want to buy rather than build, give him a look.

Reeder has been sharing prop tips on Instagram, TikTok, and YouTube, so check out his content, as well.

What This Means for Filmmakers on Any Budget

You don’t necessarily need a professional prop department. You just have to know that every prop in a dialogue scene is a potential audio problem, and it’s one you need to address early.

Getting clean production sound is one of the most important things you can do on set, and bad audio is one of the hardest things to fix in post. Sound design is about feeling, not accuracy, but that job is made much harder when the production track is contaminated with prop noise.