Behind the Scenes: How We Place a Lavalier on a Real Speaker

Before I open a case, I look at what the speaker is wearing. Fabric decides more than the microphone model does. A silk blouse rustles, a stiff canvas jacket scrapes, and a chunky knit swallows the capsule and dulls the voice. In these darker autumn weeks people arrive in scarves and layered coats, which adds another set of problems to solve before anyone speaks.

I ask the speaker to stand naturally and talk for a few seconds while I watch how the fabric moves around the chest. Where the cloth stays still, a lavalier will stay quiet. Where it folds or swings, I move to a different spot or ask whether a layer can come off.

This short look usually takes under a minute, and it tells me whether the lavalier is the right tool at all or whether a shotgun on a boom pole would serve the interview better.

• Check collars, scarves and jewellery for contact noise
• Ask the speaker to talk while you watch the fabric
• Decide early whether a lavalier suits the garment

The usual position is the centre of the chest, around a hand's width below the chin. That distance keeps the voice strong without the breathy closeness of a mic held near the mouth. If the speaker turns their head often toward a second person, I shift the capsule slightly toward the side they face most.

Hiding the microphone is a trade against quality. Tucking it fully under a shirt gives a muffled result, so I prefer to leave the capsule clear of the cloth and hide only the cable. A tiny tape loop or a clip placed on a placket usually does the job.

Where the camera frames a wide shot, a visible lavalier is perfectly acceptable and often cleaner than a buried one. I agree this with the camera operator before fitting, not after.

A good placement can still be ruined by a cable that moves. I leave a small strain-relief loop just below the clip so a tug on the lead does not travel straight to the capsule. Taping the cable at one or two points keeps it from swinging when the speaker leans or gestures.

The transmitter pack needs a home that will not shift. A belt, a waistband or a back pocket all work, but a pack in a loose jacket pocket will bounce against the body and send thumps up the cable. If a dress offers nowhere to clip, a small belt or a thigh strap solves it.

I always route the cable in a direction that does not cross the microphone, because a lead rubbing across the capsule creates a scratching sound that no later processing removes cleanly.

• Leave a strain-relief loop under the clip
• Anchor the pack where it cannot swing
• Keep the cable from crossing the capsule

Once fitted, I ask the speaker to say something ordinary, like describing their morning, rather than counting to ten. Counting produces a flat, careful voice, while natural speech shows plosives, sibilance and the real range of volume. I listen on closed headphones and watch the meter for the loudest peaks.

I am listening for rustle, for a hollow or boxy tone that suggests the capsule is buried, and for sharp s sounds that tell me it sits too close to the mouth. Small moves of a centimetre or two often fix these problems without changing any other setting.

Then I ask them to turn, sit and stand once, because the voice changes with posture. A placement that sounds fine standing may drag on the collar when the speaker sits down.

Not every speaker suits a body-worn microphone. Someone in a heavy winter coat they will not remove, or a presenter who gestures widely and taps their chest, may be better served by a shotgun held just out of frame or a handheld microphone passed between panellists.

In a panel at a long table, I often combine approaches: lavaliers for people who will stay seated and still, and a handheld for a moderator who moves about. The point is to match the tool to the person instead of forcing one method on the whole session.

I also keep a second capsule ready when the budget allows, so a failed clip or a damp cable does not stop the interview while everyone waits.

• Heavy coats and wide gestures favour other microphones
• Mix tools when speakers behave differently
• Carry a spare capsule for quick swaps

After the fit, I tell the camera operator and producer exactly where each microphone sits and what to avoid. A hand brushing the chest, a jacket zip pulled mid-answer or a scarf adjusted between takes can undo careful work, and a short word beforehand prevents most of it.

I also record a few seconds of the speaker talking at normal level before the interview begins, so the room and the voice are captured together. That clip helps in editing and gives a reference if anything changes later in the session.

None of this is complicated, but it depends on doing the small steps in the same order each time, so nothing is forgotten when the schedule runs tight.