How to Hide a Lavalier Mic Under Clothing

On scripted film and television, the lav must disappear. But hiding a mic isn't just about getting it out of shot — it's about getting it out of shot without introducing clothing rustle, which is arguably worse than a visible mic.

Every sound recordist learns this the hard way. Here's the craft, condensed.

The two enemies

1. Visibility — the capsule, the cable, or a bulge in the fabric showing on camera.

2. Rustle — fabric moving against the mic capsule. This is the real problem. A perfectly hidden mic that scrapes against a shirt on every turn is useless, and no plugin removes it convincingly.

Almost everything below is about solving problem two.

The golden rule: the mic must not touch moving fabric

Rustle happens when cloth rubs the capsule. So the goal isn't to bury the mic in fabric — it's to create a small pocket of stillness around it.

That's exactly what proper concealment mounts do: they hold the capsule in a small cage or foam pocket that keeps fabric off the diaphragm while still letting sound in. Products like the Hide-a-Mic range are built for precisely this. See hidden mic solutions.

Where to place it

The sternum / centre chest is the default. It's close to the mouth, relatively stable, and works under most garments.

Other options depending on wardrobe:

• Behind a shirt placket or button gap — natural pocket, minimal fabric movement
• Under a collar or tie knot — good for formal wear
• Hairline or ear (for period costume or very tight wardrobe) — needs careful taping
• On a bra strap or waistband — for dresses with no obvious mounting point

Avoid anywhere that flexes heavily when the actor moves — armpits, waist creases, anywhere two layers slide against each other.

Fabric by fabric

Cotton, linen, wool — the easy ones. Reasonably quiet, easy to mount to. Standard concealment works.

Silk, satin, synthetics — the nightmare. These are loud, slippery and generate static rustle on the slightest movement. You need the capsule fully isolated in a mount, and often a barrier of soft material between the mic and the cloth.

Heavy embroidered wear (Indian formal, wedding sherwanis, lehengas) — actually easier than it looks. The layers give you places to hide, but the beading and zari can be noisy. Mount the mic where the beading doesn't move, and secure the cable so it isn't dragging across embroidery.

Sheer or tight clothing — hardest. Consider moving the mic off the chest entirely — hairline, collar, or a prop.

The technique

1. Mount the capsule in a concealer — not directly against skin or cloth. The mount keeps fabric off the diaphragm.
2. Anchor it with medical-grade tape or a skin-friendly pad, so it can't shift as the actor moves.
3. Strain-relief the cable. Make a small loop and tape it down below the capsule. If the cable pulls, it pulls on the tape, not the mic.
4. Run the cable down and around, not across moving joints, to the transmitter at the waist or back.
5. Test with movement. Have the actor turn, sit, gesture and walk while you listen. Rustle you can hear in headphones is rustle in the take.

Skin-friendly body pads matter here — actors wear these for twelve-hour days, and tape that irritates is tape that gets removed.

Common mistakes

• Burying the mic deep in fabric. More cloth means more rustle, and muffled sound. You want the capsule in a still pocket near the surface, not smothered.
• Skipping the strain relief. Cable tug is a leading cause of mid-take noise.
• Not testing with real movement. A mic that's silent when the actor stands still tells you nothing.
• Reusing tape. It loses grip, the mic shifts, and you get rustle halfway through a scene.

When to give up and boom it

Sometimes wardrobe wins. Sheer fabric, a swimming scene, heavy action — if you can't mount the lav quietly, don't force it. Use a boomed shotgun mic instead. A clean boom always beats a rustling lav.

Most professionals run both anyway — see our guide to lavalier vs shotgun.

The gear

Proper concealment gear pays for itself the first time it saves a take. Browse hidden mic solutions and lavalier concealers — genuine Hide-a-Mic and specialist mounts, authorized-dealer stock with India warranty and GST invoice.

Working with a difficult fabric? Message our recordists on WhatsApp — tell us the wardrobe and we'll tell you what actually works on it.