Lav vs Shotgun Mic: Which One Actually Wins on Set
Lavs and shotguns solve different problems, and picking wrong costs you the edit. Here is how a working shooter decides, mounts, aims, and why running both is the cheapest insurance you can buy.
Josiah Love··7 min read
Every audio argument on a small crew eventually collapses into the same question: lav or shotgun? The honest answer is that they solve different problems, and the shooters who get clean dialogue every time are the ones who know which problem they are actually facing. A lav is a contact sport — it lives on the body and hears the voice from inches away. A shotgun is a geometry tool — it rejects what is off-axis and keeps what you aim it at. Neither is better. One of them is right for the room you are standing in.
This piece is the decision process I use on real jobs: interviews, run-and-gun b-roll days, echoey conference rooms, and narrative scenes where the mic cannot be seen. If you are still building out your kit, cross-reference the videographer gear checklist
so audio does not become the thing you forgot.
What each mic is actually good at
A lavalier wins on consistency. Once it is mounted, the distance from capsule to mouth never changes, so the level never changes. The subject can turn their head, lean back, gesture, pace — the sound stays put. That is why lavs dominate interviews, presenters, and any situation where the talent moves and you cannot chase them with a boom.
A shotgun wins on tone and invisibility. A good shotgun on-axis, close, sounds fuller and more natural than almost any lav — more chest, more air, less clothing. It also never touches the talent, which matters for nervous interviewees, quick turnarounds, and anyone whose wardrobe fights clips and tape. The cost is that a shotgun's quality is entirely dependent on distance and aim. Every foot you pull back, the room gets louder and the voice gets thinner.
Where each mic wins
The lav's territory
Seated interviews with a small crew. No boom op means no one holding a pole for forty minutes. Clip it, check it, shoot.
Noisy environments. In a loud cafe or on a street corner, the lav's proximity to the mouth is your best weapon. Signal-to-noise is mostly a distance game, and the lav starts two inches from the source.
Walking-and-talking and presenters. Wireless lav plus a moving subject is the entire reason wireless lavs exist.
Live events and ceremonies. You get one take. A lav on the officiant or speaker is coverage you cannot lose by mis-aiming.
Echoey rooms. Reverb is captured relative to direct signal. Closer mic, drier sound. A lav in a glassy office beats a shotgun at four feet every single time.
The shotgun's territory
Run-and-gun documentary work is shotgun territory. When you do not know who will talk next, you cannot wire everyone. A shotgun on a boom — or even on-camera as a scratch-plus layer — lets you swing coverage to whoever matters in the moment. It is also the tool for scenes: two or more people trading dialogue, blocking that changes take to take, and any shot where wardrobe makes hiding a lav miserable (silk, sequins, gym clothes, no shirt at all).
Shotguns also win when the subject should not know or feel that they are mic'd. Kids, documentary subjects who tense up when wired, and quick vox-pops on the street all read more natural when nothing is clipped to them. And for controlled interviews where you do have a stand or a boom op, an overhead shotgun just outside the frame line is often the best-sounding option in the bag.
Placement craft: where the difference is actually made
Mounting a lav properly
Target the sternum, roughly a hand-width below the collarbone. Clip to a stable seam or placket, cable looped once under the clip as a strain relief so tugs on the wire never reach the capsule. Listen on headphones while the subject rubs their chest and turns their head — if you hear scratching now, you will hear it for the whole interview. For hidden mounting, tape the capsule under the shirt with a broadcast-style bridge of tape over it so fabric floats above rather than resting on the element, and kill static by dressing the fabric with a whisper of moleskin. Under-collar and inside-lapel spots work, but always re-check after the subject sits, because clothing shifts.
Aiming a shotgun properly
The axis matters more than the model. Point the capsule at the mouth — not the chest, not the forehead — from just outside your widest frame line. Overhead and angled down is the default because it aims the rejection at the room's loudest planes and follows the head naturally. From below works when headroom is tight, but watch for it picking up chest boom and HVAC from the ceiling being on-axis behind the head. Keep the working distance inside arm's length whenever the shot allows. Off-axis is not just quieter; it is thinner and hollower, and no EQ fully repairs it.
Double-covering: run both and stop gambling
On anything that matters — client interviews, weddings, doc subjects who will not be available again — I run both. Lav on the body, shotgun overhead, recorded to separate tracks. This is not indecision; it is coverage. The lav saves you when the subject drops to a whisper or a truck rolls past. The shotgun saves you when the lav eats a collar rustle or the transmitter takes an RF hit. In the edit you pick the better track per line, and the second mic also hands you natural room tone for smoothing cuts — which pays off directly in a faster assembly, as covered in editing videos faster.
Two habits make dual coverage painless. First, record each mic to its own track or recorder channel — never sum them on set, because summed mics can comb-filter and cannot be un-mixed. Second, slate a clap or use timecode so sync takes seconds, not minutes.
The decision table
Situation
First choice
Why
Backup
Seated interview, small crew
Lav
Consistent level, no boom op needed
Shotgun on stand overhead
Seated interview, full crew
Shotgun on boom
Best tone, nothing on talent
Hidden lav
Run-and-gun doc / events
Shotgun
Cover anyone without wiring them
Lav on the key subject
Loud or echoey location
Lav
Proximity beats the room
Short shotgun in close
Walking presenter piece
Wireless lav
Talent moves, mic does not
Camera shotgun as scratch
Narrative scene, mic must hide
Boomed shotgun
Invisible and natural
Hidden lavs per actor
Difficult wardrobe
Shotgun
Nothing to clip or tape
Lav in hair or on collar
The habit that matters more than the mic
Whichever mic you choose, monitor on closed headphones from the moment the talent is mic'd, and record thirty seconds of room tone before you wrap the location. Most ruined dialogue was ruined at capture by nobody listening — a rubbing collar, a fridge compressor, a mis-aimed boom — not by the choice of microphone. The lav-versus-shotgun decision gets you to the starting line. Ears on the whole take get you home.
Frequently asked questions
Is a lav or shotgun mic better for interviews?
For small crews, a lav is the safer default because the level stays consistent without a boom operator. If you have a stand or an operator and a reasonably quiet room, a shotgun just out of frame usually sounds fuller. On important interviews, run both to separate tracks and choose in the edit.
Can I use a shotgun mic indoors?
Yes, but keep it close and prefer shorter shotguns or hypercardioid mics in small reflective rooms. Long shotgun tubes can sound phasey indoors because their side rejection interacts badly with wall reflections. Distance is the real enemy: inside arm's length, most shotguns sound great indoors.
Where should I place a lavalier mic?
About a hand-width below the collarbone on the sternum, clipped to a stable seam with a strain-relief loop in the cable. If hiding it, tape it under clothing with a bridge of tape so fabric floats over the capsule, then listen on headphones while the subject moves to check for rustle.
Should I record lav and shotgun at the same time?
On anything unrepeatable, yes. Record them to separate tracks, never summed together, and slate a clap for sync. Each mic covers the other's failure modes — clothing noise and RF hits on the lav, off-axis dips and room noise on the shotgun.
