What does a production sound mixer do, and when do you need one?
By Crews Now · Updated October 21, 2026 · 5 min read
Viewers forgive imperfect images, but they click away from bad audio. A production sound mixer is the crew member responsible for recording clean, usable sound on set.
What a production sound mixer does
- Places boom and wireless (lavalier) microphones on talent and hides them for camera.
- Monitors and mixes audio levels live through the take.
- Listens for problems such as air conditioning, traffic, clothing rustle or a dropped signal, and asks for another take when needed.
- Records to a dedicated audio recorder and often sends a backup feed to the camera.
- Keeps sound in sync with the camera using timecode or slates, and delivers labeled files and sound reports to the editor.
When you need one
Book a sound mixer for any shoot where people are speaking and the audio matters: interviews, testimonials, scripted scenes, panels and documentaries. A one-person videographer can manage simple setups, but when several people talk, the location is noisy, or the interview cannot be repeated, a dedicated mixer is worth it.
On larger shoots, the mixer works with a boom operator, sometimes called a second sound or utility.
What it typically costs
In the United States, production sound mixers commonly charge around $500 to $1,200 per day depending on the market, the type of production and whether their sound kit is included. Many quote labor and kit separately, so ask what microphones, wireless channels and recorders are in the price.
Questions to ask before booking
- How many wireless channels do you bring?
- Do you provide timecode sync for the cameras?
- Do you need a boom operator for this shoot?
- What file format do you deliver, and do you provide sound reports?
Find a production sound mixer
Browse production sound mixers by city on Crews Now.