On a show with six actors wired, two booms, a director who wants to hear every take, and a producer's laptop at video village, the mixer can't also be changing batteries and chasing a dropout. The utility handles those jobs so the mixer can stay at the cart and listen.
Wireless and wiring actors
Most scripted scenes now record lavalier mics alongside the boom, and the utility usually handles the wiring. That means choosing mic placement for each costume, often in the chest or collar area, hiding the mic and cable so they don't show or rustle, and securing the transmitter on a belt, a thigh strap, or in a pocket.
Wiring happens in the trailer or a private area, and it involves touching actors and their clothes. A careful utility explains what they're doing, asks first, offers the actor the option to place the mic themselves, and coordinates with costume, especially when the wire has to go under a shirt or dress. Costume changes mean re-wiring, so the utility tracks each actor's changes on the call sheet and works with the costumer to do both at once.
The utility also manages wireless frequencies, since a city location can be full of interference, and swaps batteries on a schedule before anything dies mid-take. A dead transmitter during the best take is the kind of problem that shows up in editorial.
Headsets for everyone else
The director, script supervisor, producers, and sometimes clients listen to takes on wireless headsets, commonly called Comteks or IFBs. The utility programs them, hands them out at call, keeps spare batteries, and collects them at wrap. On a big day there may be a dozen. A missing headset at wrap becomes a loss and damage note.
Second boom and cable
When a scene has two actors far apart or overlapping dialogue across a room, the utility runs a second boom alongside the boom operator. They also run cable from the cart to set when wireless isn't the right choice, and to video village for playback. On a company move the utility packs the cart, loads the sound truck or van, and sets up again at the new location.
Noise control is part of the job too. The Local 695 article on utilities describes laying rugs and applying Foot Foam to kill footfalls, and chasing down squeaky chairs and door slams before the take.
A day for the utility
With a 7:00 AM crew call and two scenes:
| Time | Utility's work |
|---|---|
| 6:30 AM | Charges batteries, preps transmitters, tests Comteks |
| 7:00 AM | Hands out headsets to director, script supervisor, and producer |
| 7:15 AM | Wires the lead actor in the makeup trailer after hair and makeup |
| 7:30 AM | Blocking. Notes where actors hug or sit, since lavs rustle on contact |
| 8:30 AM | First take. Watches wireless levels on a receiver near set |
| 10:00 AM | Actor changes wardrobe for scene 2; utility re-wires with the costumer |
| 12:30 PM | Lunch. Swaps all transmitter batteries |
| 2:00 PM | Runs second boom on a dinner table scene with four actors |
| 6:30 PM | Wrap. Unwires actors, collects headsets, packs the cart |
Kit rental and gear
Most wireless, lavalier mics, and headsets belong to the mixer's package, rented weekly by the production. A utility who owns specialized items, such as personal lavaliers, wiring supplies, or a second boom pole, may add a small kit rental on the deal memo with an inventory. Expendables like medical tape, moleskin, and batteries are usually purchased by production.
Local 695 and getting started
In Hollywood, utility sound technicians are members of IATSE Local 695. Local 695's join page lists the roster requirement as at least 30 qualified IATSE days in your job classification within the past year, or 100 combined qualified days of IATSE and non-IATSE work within the past three years, and says utility and boom operator days can now be combined. Contract Services requires its general production safety and harassment prevention courses before roster placement. Local 695's magazine has covered the job in detail, including a piece by Peggy Names and Jennifer Winslow, "The Utility Sound Tech." In New York, sound crews are part of IATSE Local 52.
People usually start as utilities on reality shows, documentaries, commercials, and indie features, then move to boom operator and eventually mixer. Utilities who learn wireless frequency management well are in demand, because crowded RF environments are hard to work in.
Working with the whole set
The utility is the sound department's most mobile member: in the makeup trailer, at video village, on set, and at the cart. They coordinate with costume on wiring, the 2nd AD on actor timing, the first team when actors are ready for set, and the production sound mixer all day. The job also involves radio discipline, since utilities check in on walkie channels when actors are wired and ready.