Making Video Calls That Actually Work

Video call quality is determined mostly by things you can fix in advance. The same handful of problems recur across every platform.

Audio matters more than video

If you improve one thing, improve audio. People will tolerate a poor picture and will not tolerate audio they have to strain to follow.

Use a headset or earphones with a microphone. Even inexpensive ones outperform a laptop's built-in microphone, because they sit near your mouth rather than near the fan.

Earphones also eliminate echo. Echo is caused by your speakers feeding back into your microphone. Software cancellation helps and does not fully solve it. Headphones do.

Check which device is selected. Applications frequently choose a different microphone from the one you expect, particularly after connecting anything by Bluetooth. Every platform has a device test in its settings — use it before an important call, not during.

Avoid Bluetooth earphones for calls if quality matters. When a Bluetooth headset's microphone is in use, many devices drop into a low-quality audio mode that degrades what everyone hears. Wired is better for calls.

Bandwidth

Upload speed is the constraint, not download, and home connections often have far less of it.

A group video call typically needs one to four megabits per second upstream. Several people in one household on calls simultaneously will exceed a modest connection.

Wired beats wireless. If the machine can be connected by Ethernet, do it. Wi-Fi problems account for a large share of poor calls, and they present as freezing and robotic audio rather than as an obvious connection failure.

If Wi-Fi is the only option: be close to the router, prefer the 5 GHz band, and avoid a call from the furthest room in the house.

Turn off video when the connection struggles. Audio needs a fraction of the bandwidth and audio is what carries the meeting.

Close what else is uploading. Cloud sync clients, backups and file uploads compete directly.

Camera and light

Light from in front, not behind. A window behind you turns you into a silhouette. Facing a window, or placing a lamp behind the screen, fixes it entirely and costs nothing.

Raise the camera to eye level. A laptop on a desk points up at you. Books under the laptop are a complete solution.

Frame yourself with the eyes about a third from the top, with a little space above the head.

Clean the lens. Laptop cameras accumulate a haze that people mistake for a low-quality sensor.

Permissions

The most common "my camera does not work" cause, especially on macOS and on newer Windows builds.

Check the operating system's privacy settings for camera and microphone access, per application. A browser needs permission at the operating system level and again per site.

In the browser, the padlock or icon in the address bar shows what the site is allowed to use. Permissions denied once are remembered.

Before an important call

Join the platform's own test call if it has one. Both major platforms and most others provide a test meeting.

Restart the machine if you have not for days. This resolves a surprising share of device-in-use conflicts.

Close other applications that hold the camera. Only one can use it at a time on most systems, and a background application holding it produces a black video window.

Check the meeting link works and whether it requires an account or an installed client.

Have a fallback. A phone number to dial in, or a second device. When a laptop fails two minutes before a meeting, a phone with the same application installed saves it.

Running a call with several people

Mute by default in groups above four, and unmute to speak.

Ask people to use headphones if echo appears; it is nearly always one participant.

Use the raise-hand feature rather than talking over each other, which video makes harder than it is in person because of the delay.

Share a specific window rather than the whole screen, which avoids showing notifications and other content.

Turn off notifications while sharing. Both platforms have a do-not-disturb mode, and this prevents the classic incident of a private message appearing mid-presentation.

Record only with consent, which is a legal requirement in many jurisdictions and basic courtesy everywhere.

When it is still bad

Ask whether the problem is you or them: if everyone else sounds fine and you do not, it is your end.

Switch to audio only. Switch to a phone call. Reschedule rather than persisting through a call nobody can follow — twenty minutes of frustration costs more than a delay.

Mistakes people make

Fixing video before audio. People tolerate a poor picture and will not tolerate audio they must strain to follow.

Using Bluetooth earphones for calls. When their microphone is active, many devices drop into a low-quality audio mode that degrades what everyone hears. Wired is better.

Sitting with a window behind you, which turns you into a silhouette. Turning around fixes it and costs nothing.

Not checking which microphone is selected. Applications frequently pick a different device than you expect, especially after anything connects by Bluetooth.

Sharing the whole screen rather than one window, then showing a notification to the room.

Having no fallback. A phone number to dial in, or a second device, saves the meeting when a laptop fails two minutes beforehand.

The short answer

Wired earphones with a microphone, light in front of you, camera at eye level, wired network if possible, and the device settings tested before the call rather than during it.