Speaking on video calls: voice and presence through a screen
Introduction
An enormous share of professional communication now happens through a camera and a microphone, and almost nobody has been taught how to do it. It's assumed that a video call is like talking in person, only through a screen. It isn't. The channel strips out information, introduces delay, and changes the rules for taking turns.
What gets lost isn't minor. Almost the entire body disappears, leaving a rectangle with a face in it. Real eye contact disappears, because looking into someone's eyes on screen means not looking at the camera. The micro-pauses that regulate who speaks get scrambled by the delay. And sound, which arrives intact in person, arrives compressed and clipped at both ends.
The practical consequence is that on a video call your voice takes over the work your body used to do in person. And that can be trained.
Sound matters more than picture
This is the point most people get backwards. People invest in cameras, lights, and virtual backgrounds while still using the laptop's built-in microphone, half a meter from their mouth and pointed at the fan.
Mediocre video with good audio is effortless to follow. Excellent video with bad audio is exhausting within ten minutes. The reason isn't aesthetic: when sound is poor, the listener's brain has to reconstruct what's missing, and that constant effort produces fatigue and loss of attention. A good part of what gets blamed on "too many meetings" is actually listening fatigue.
What makes a difference, in order of impact:
- A headset with a microphone, even a basic one. Getting the mic close to your mouth solves more than any expensive equipment placed far away.
- A room with some absorption: curtains, a rug, shelves with books. Empty rooms with bare walls produce reverberation, which is what makes a voice sound tinny.
- Muting when you're not speaking, if there are more than three of you. Background noise from several people degrades the entire call.
Your voice needs more work, not more volume
Compression strips out nuance, and with it part of your expressiveness. Compensating by turning up the volume doesn't work: it clips and sounds aggressive. What works is articulating and varying.
Enunciate a little more than usual. Not exaggerated, but deliberate. Final consonants are the first thing lost in compression, and they're what distinguish similar words.
Speak somewhat more slowly. The delay makes sentences overlap and leaves the listener perpetually a beat behind. Slowing down gives room for that lag.
Vary your intonation deliberately. Monotony is boring in person; on a video call it's effectively inaudible, because there are no gestures to compensate. Marking with your voice what you'd mark with your hands in a room is the central adaptation to the medium.
Breathe before you speak. Launching in mid-impulse, without air, produces that rushed start so typical of remote meetings.
Turn-taking is the real problem
In a room, turns get negotiated through tiny signals: an intake of breath, a slight lean forward, a glance. All of that is lost or arrives late. The result is the two classic failures: two people starting at once, or a silence nobody dares fill.
What helps:
- Naming who goes next. "Marta, how do you see it?" It removes ambiguity instantly and is by far the most effective move.
- Waiting a full second before responding. It feels eternal and prevents most overlaps.
- Ending sentences clearly, not leaving them hanging. Falling intonation signals "I'm done" better than any gesture.
- Using the chat for minor points instead of interrupting.
Camera and gaze
Put the camera at eye level. A laptop on the desk shoots you from below, which is the worst possible angle. A few books underneath fixes it for free.
Frame your upper body, not just your face. Seeing your hands lets you gesture, and gesturing isn't only for the viewer: moving your hands improves your own fluency.
Look at the camera at key moments. Not the whole time — that's unnatural and uncomfortable — but at the start, when closing an idea, and when asking a direct question. That's where the other person perceives eye contact.
Light in front, not behind. A window in front of you illuminates; behind you, it turns you into a silhouette.
About keeping the camera off
It's a legitimate choice and sometimes the right one. Keeping the camera always on demands constant self-monitoring — and means looking at your own face for hours, which is one of the identified causes of video-call exhaustion. For long, informational, or large meetings, turning it off is reasonable. For one-on-one conversations, negotiations, or delicate topics, turning it on provides information that justifies the cost.
If you're going to be on camera a long time, hide your own thumbnail. Everyone else still sees you the same, and you lose that permanent mirror.
Reduce the fatigue
Meetings of 25 or 50 minutes instead of 30 or 60, to leave real breathing room between them. A glass of water within reach, because talking a lot is drying. Standing up between calls. And for conversations that only require talking, the voice call taken while walking remains an excellent option that the habit of video has made us forget.
Final thought
A video call isn't an in-person conversation with lower quality: it's a different medium with its own rules. It asks for more voice and less body, more structure and less spontaneity, more silence between turns and less improvisation. If you're only going to change one thing, make it the microphone; if you'll change two, add the habit of waiting a second before answering. That alone makes a noticeable difference on the other end.