GUIDE
Live captions for conferences and events: from accessibility to multilingual reading
In three sentences
- Live captions turn speech into text instantly, translate it if needed and stream it on the attendee’s screen; VerbaStage delivers them in every target language together with audio, in the same broadcast.
- Captions appear slightly before the audio, because text is ready right after translation while natural speech takes a few seconds — total delay is 3–6 seconds including the network.
- Captions add the most value in noisy halls, for multilingual audiences and at events with accessibility obligations; showing them on the attendee’s phone instead of one hall screen makes language a personal choice.
Live captions are not only for attendees with hearing loss; in a noisy fair hall, for attendees who prefer to read in their own language and for sessions that will be archived, captions are a fundamental layer. This guide explains how live captions are produced, how they work together with audio and where their limits are.
How live captions are produced
Stage audio is taken from the mixer and speech becomes text instantly. Source-language captions are ready right after that step; target-language captions follow the translation step. VerbaStage produces one broadcast per target language carrying both narration and captions, so attendees can use both or captions only. Because a correct caption cannot be written before the sentence is complete, the text advances in units of meaning; the aim is readable lines rather than a word-by-word flicker.
Accessibility: for whom, and why it is becoming mandatory
For attendees with hearing loss, for those whose first language is not the stage language and for people listening in noisy environments, captions are often the only access path. In public, university and international congresses accessibility is increasingly a contract clause. Being able to read on one’s own phone in one’s own language gives personal access instead of one hall screen for everyone; text size and language stay under the person’s control.
Screen or phone?
Captions on a hall screen come in one language and one size; people far away cannot read them and multilingual audiences are forced to pick one language. Captions on the phone mean as many languages and sizes as there are listeners. VerbaStage designs the attendee page for this: opened by QR, language chosen, captions and audio in one place. A single language can also be projected on the hall screen if wanted; the two do not exclude each other.
Delay and accuracy
Captions have a delay too, for the same reason: the translatable unit of meaning must be complete. Source-language captions appear earlier than audio; target-language captions are ready slightly before the narration. A total delay of 3–6 seconds is the realistic expectation. Accuracy depends on the speaker’s diction, hall audio and terminology; that is why the rehearsal runs in the hall with the real microphone and event terminology is added to the translation context.
Archive and afterwards
Where the event agreement and recording choice allow, transcripts and captions are archived per event, leaving a readable record after the session. This is valuable for sponsor reports, association minutes and next year’s content planning. Retention period and scope are defined in the agreement; the default behaviour is “as much as needed, for the agreed period”.
Frequently asked
- Why do captions appear before the audio?
- Text is ready right after translation; natural speech takes a few seconds. This is normal and is why captions usually run ahead of the audio.
- Can attendees use captions only?
- Yes; they can mute the audio and only read, or use both. They are parts of the same broadcast.
- Can captions be projected on the hall screen?
- Yes, one language can be projected; the personal language choice on the phone remains in addition.
- Which languages have captions?
- All target listener rooms: English, French, German, Spanish, Arabic and Turkish; source-language captions are provided as well.
Instead of reading, listen: a live demo with your own voice.
Start a short live demo with a few details and microphone permission; see the delay, audio and captions on your own phone.
Last updated: 2026-08-18. This guide describes real product behaviour; figures follow our realism principle.