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The Microphones, Mixers and Monitors We Trust for Live Dialogue

A practical look at the audio tools and methods our engineers rely on in news and live studios, from mic choice and gain staging to the monitoring that catches problems early.

Oliver Hartley · 8 October 2026 · 6 min read

Starting with the microphone, not the mixer

When a studio calls us because dialogue sounds thin or messy, the first place we look is rarely the mixing desk. It is the microphone and where it sits. A presenter's voice reaches the desk only as well as the capsule captured it, and no amount of equalisation fully repairs a mic that was too far away or pointed badly.

For desk presenters we usually rely on small lavalier microphones clipped around the breastbone, with a second, independent capsule taped nearby as a spare. For guests who move about, a handheld or a headset gives us a steady distance from the mouth. Each option has a trade-off, and we choose according to the set, the wardrobe and how much the person moves.

We also ask who will be wearing the mic and how comfortable they are with it. A nervous guest who fiddles with a clip creates noise that no engineer can remove later.

Lavalier for seated news presenters
Headset or handheld for guests who move
A spare capsule on every critical talent position

Placement habits that save time on air

Placement is a craft of small distances. A lavalier sits roughly a hand's width below the chin, centred where it hears the voice evenly without catching breath or chin movement. Move it a few centimetres towards the shoulder and the tone turns dull; move it up and plosives creep in.

We route cables so they leave the body in a loose loop rather than a tight line, which stops tugs from being heard as thumps. Clothing matters too: silk and stiff fabrics rustle, so we ask wardrobe for quieter materials where we can, and we use small foam or tape mounts to isolate the capsule from cloth.

On a studio desk, we keep fixed boom or table microphones out of the line of laptop fans and monitor stands, because those hum and rattle in ways that only show up once the show is live and everyone is committed.

Capsule a hand's width below the chin
Cable loop to relieve strain
Mounts that keep fabric from touching the capsule

Gain staging and the mixing desk

Once the signal leaves the microphone, the method that matters most is gain staging: setting the level at each point so that nothing is starved or squashed. We set input gain so that normal speech sits comfortably below the loudest peaks, leaving headroom for the moment a presenter laughs or a guest raises their voice.

On the desk we keep processing modest. A gentle high-pass filter removes low rumble from air handling and desk knocks. Light compression evens out the difference between a quiet read and an animated one. We prefer to do a little in each place rather than a lot in one, because heavy correction in a single stage is what makes dialogue sound processed.

Faders then do the live work. A confident engineer rides them in small moves, following the conversation, rather than leaving everything static and hoping.

Set gain with headroom for loud moments
High-pass filter for low rumble
Light compression, applied sparingly

Monitoring: hearing what the viewer hears

Monitoring is the part of the chain that is easiest to neglect and hardest to live without. We listen on closed-back headphones for detail and on a pair of studio speakers at a modest level for balance, because the viewer at home hears something between the two. A mix that only sounds right on one of them tends to fail on the other.

We also keep a small, cheap speaker on hand to check how the show translates to a television in a kitchen or a phone held up at a bus stop. If the dialogue is clear there, it is probably clear everywhere.

Equally important is a talkback path that is audible but never leaks into the programme feed. Producers need to speak to presenters, and engineers need to hear that conversation without it reaching the broadcast.

Headphones for detail, speakers for balance
A small reference speaker for real-world checks
Talkback kept separate from the programme feed

Checks we run before the first live minute

Before a show, we walk through a short routine that has caught more problems than any piece of equipment. Every microphone is spoken into by the person who will wear it, at the volume they will actually use, not a polite test voice. We check batteries, radio frequencies and the position of every receiver.

We then listen for the room itself. Air conditioning, a buzzing light, a distant door: these show up as soon as the studio is quiet and the faders are open. It is far easier to deal with a noisy fitting at ten in the morning than during the opening headlines.

Last, we agree a simple signal with the director for when a microphone fails, so that the fix is a calm, practised move rather than a scramble across the gallery.

Test each mic with the real wearer and level
Replace or charge batteries before every show
Agree a clear failure signal with the director

Keeping the toolkit small and repeatable

Over the years we have learned that a reliable audio setup is usually a modest one. A few microphone types we know well, a desk layout the whole crew recognises and a written patch list will beat a clever arrangement that only one person understands.

We label cables at both ends, keep spares in the same labelled case every time and note the settings that worked for each presenter. When a show returns after a break, those notes let us rebuild the sound in minutes rather than starting from guesswork.

As the colder months bring dry air and more static, we also pay closer attention to connectors and clothing, since small crackles tend to appear in exactly these conditions.

Good live sound comes from a handful of dependable tools used in a consistent order: the right microphone in the right place, sensible gain, restrained mixing and monitoring that tells the truth. None of it is glamorous, and that is the point. When the chain is simple and well practised, the engineer can listen to the programme instead of fighting the equipment, and the dialogue reaches the viewer clean and balanced.

About the author

Oliver Hartley

Head of Studio Production

Oliver has worked in studio galleries for over a decade and leads our setup and workflow projects.