Which role records on set sound?

• A. Gaffer
• B. Sound Mixer
• C. Boom Operator
• D. Director

Answer: (B)

The person who records on-set sound is the production sound mixer. This role is in charge of capturing all dialogue and ambient noise during filming, using the right microphones (like a boom mic and wireless lavaliers) and a field mixer or recorder. They monitor audio levels in real time, adjust gains, manage sound quality, and ensure the audio is clean and properly synchronized with the picture. They work closely with the boom operator to position the mic for the best capture and to minimize wind and background noise, while handling any technical issues that affect sound.

The gaffer focuses on lighting, not recording audio. The director guides the artistic aspects of the scene but doesn’t handle the technical task of recording sound. The boom operator physically holds and maneuvers the microphone, helping with placement, but the responsibility for recording, balancing levels, and ensuring clean tracks lies with the production sound mixer.