Good text can still fail to be seen
An accurate live caption is no use to someone who cannot see it. At in-person events, deciding where the text appears is as important as choosing who or what produces it. Poor placement is one of the most common reasons captions go unused: the screen is too far away, hidden behind a pillar, washed out by lighting, or placed so that reading it means turning away from the speaker.
This article looks at the options and the points to weigh. It focuses on the display, not on producing the text.
Common placement options
Screens beside the stage
A dedicated screen or two beside the stage is a common arrangement. Viewers can look from the speaker to the text with little head movement, and it leaves the main slides undisturbed. Its weaknesses are viewing distance and angle. A single side screen may be easy to see from the front and awkward from the far corners of the room.
Below or on the main screen
Captions can be shown in a band under the main presentation, either by the technical team or by the presentation software. This keeps everything in one place. The downside is that the text can compete with slides for space, and a line of text under a slide can be small when the screen is far away.
Multiple repeater screens
In larger rooms, several screens positioned around the venue allow more people to read comfortably. It costs more equipment and wiring, but may be necessary in wide or deep halls.
Personal devices
Text can be sent to attendees’ phones, tablets or laptops, usually through a web page that people open with a link or code. Viewers can then adjust size and contrast to suit themselves and sit wherever they like. Points to check include reliable Wi-Fi, battery life, and whether people have a suitable device. The text also pulls attention to a small screen, so some viewers will find it tiring to look down and up repeatedly. Having a shared display in addition is often wise.
Dedicated reading stations
Some venues set up a reserved area with a monitor close to seats, for people who want large text near the front. This can be combined with seating that gives a clear view of the speaker as well as the text.
Smart glasses and similar devices
Wearable displays that show text near the eye line exist, and some venues and viewers use them. Availability, comfort and suitability vary, so they are best treated as an option to explore with attendees who ask for them, not as a general solution.
Streams and overflow rooms
For online audiences or overflow rooms, captions may be part of the video feed or offered as a separate window. A choice between open captions burned into the picture and closed captions that can be toggled changes what viewers can control.
What to consider
Sightlines
Walk the room and check the view from the back row, the sides and any reserved places for wheelchair users or people with hearing loops. Look for pillars, plants, tall seats or equipment in the way. Remember that people who rely on lip reading or sign language may also need a clear view of the speaker or interpreter, so the text should be close to them, not on the opposite side of the stage.
Size and legibility
Text must be readable from the farthest seat. Font size, spacing and contrast matter, and the principles of subtitle legibility apply equally to live text. As a rule, sans-serif fonts with strong contrast, such as light text on a dark background, are usually easier to read at a distance, though preferences vary. Limiting the number of visible lines helps; a two-line limit may be too restrictive for scrolling text, but a few lines usually reads better than a full screen of words.
Lighting
Bright stage lights or sunlight on a screen can wash out text. Projection screens in a lit room are harder to read than monitors. Test in the actual lighting, including any changes during the program such as dimmed lights for a video.
Delay and distance
Screens that are far from the speaker can make caption delay feel worse, since viewers shift their eyes between speaker and text. Keeping the text near the speaker’s line of sight reduces the effort.
Scrolling or blocks
Text can scroll continuously or appear in chunks. Scrolling follows speech more closely but can be harder to read when it moves quickly. Block text is steadier and may look neater, but it generally lags more. Some viewers have a clear preference, so trial both if the system allows.
Layout of slides
If captions share a screen with slides, make sure they do not cover charts, names or other key content. Planning slide layouts with a bottom margin, or using a separate display, avoids the problem.
Public screens
For events held in public spaces, such as exhibitions or outdoor shows, captions on public screens may be visible to passers-by as well as attendees. This might be an advantage, but it also means choosing text size and position for people who are standing and moving.
Test with real people
Equipment checks are not enough. If possible, ask a few people, ideally including some who regularly use captions, to sit in different places and tell you what they can read. Their feedback is usually more revealing than any plan. Then adjust screen angle, size or number of screens.
Telling people where to look
Even a well-placed screen is wasted if no one knows it exists. Mention the captions in the opening announcements, on signs, on the program, and in any accessibility statement. Say where the screens are and how to join text on personal devices, and name a person to ask if something is unreadable.
Access requirements for venues and events differ by place. The relevant authority or a qualified professional can say what applies; the practical aim here is simply that attendees can read the text easily.