6 min read
Boom vs lav for beginner filmmakers: which microphone for which shot?
A boom captures space and performance. A lav is close and consistent. Beginners should know both, even if they only own one.
The boom versus lav debate is really a question of distance, framing and movement. A beginner who understands both can choose the right mic for the shot instead of relying on whatever is in the bag. Neither is perfect. Each has a job.
The boom microphone
A shotgun microphone on a boom pole is directional and designed to be pointed at the actor from just out of frame. It captures the natural acoustic of the space, the voice and some movement, and it sounds like the scene looks. It is the standard for drama, exteriors and any shot where the camera moves.
- Best for wide shots, moving shots, and scenes where the actor's position changes.
- Requires an operator and a boom pole, or a very patient static stand.
- Struggles when the frame is too wide to hide the mic.
- Sounds natural because it records the voice and the room together.
The lavalier microphone
A lavalier is a small microphone clipped to clothing, usually within a foot of the mouth. It is close, consistent and independent of the frame. It is the standard for interviews, sit-downs and any shot where the actor cannot be boomed.
- Best for interviews, tight shots and static speakers.
- Hides under clothing, but clothing rustle and wind are constant risks.
- Provides a consistent level even when the actor turns their head.
- Sounds close and intimate, sometimes unnaturally so.
When to use both
Professional shoots record boom and lav simultaneously. In post, the editor chooses the cleaner track for each line, or blends them. For a beginner, using both is excellent insurance but adds complexity in sync and editing. Start with one, then add the second when you are comfortable.
Hiding a lav on a beginner set
Clip the lav to the placket of a shirt, the knot of a tie, or under a jacket lapel. Run the cable under the shirt to reduce rustle. Use moleskin or medical tape to secure the cable where it meets the mic. Test every movement the actor makes before rolling.
The beginner recommendation
Buy one good lav first if you mostly shoot interviews and controlled scenes. Buy one boom first if you shoot drama, movement, or outdoor scenes. In either case, add wind protection immediately. Wind destroys more takes than microphone quality.