EventRecast
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Feature

Real-time captions, on every device

Speak into your microphone and captions appear on your audience's screens within seconds. No plugin, no install, no audio routing.

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Real-time captioning is the headline feature of EventRecast — and the one most platforms get wrong. The thing that separates a usable live caption from a frustrating one is end-to-end latency: the time between a speaker saying a word and an attendee reading it. Above four seconds, attendees stop reading. EventRecast targets a sub-three-second target as a working baseline, and most events come in under two.

The architecture is browser-first. The audio is captured on the broadcaster machine, transcribed in the cloud, and pushed back to viewer devices over a low-overhead transport. The result is captions that feel like they're keeping up with the speaker — because they are.

What real-time means here

Sub-three-second latency

End-to-end target under three seconds, with most words landing under two. Captions feel synchronous with the speaker, not lagging behind.

Any device, any browser

Attendees open the viewer link on a phone, tablet, or laptop. There's no app, no plugin, no separate joiner — just a URL.

Works with any audio source

USB mic, Bluetooth headset, AV soundboard tap, conference room speakerphone — if the host machine can hear it, EventRecast can caption it.

Custom vocabulary per event

Add product names, internal acronyms, speaker names, and technical jargon to lift accuracy on the first transcript pass.

Resilient to flaky networks

The transport degrades gracefully when an attendee's connection drops. Captions resume without losing context.

Attendee-controlled display

Each viewer adjusts font size, contrast, and color theme on their own device — accessibility without coordinating with the broadcaster.

How real-time captioning works

  1. Open the event

    Sign in on the broadcaster machine and open the event you created. Confirm the right mic is selected.

  2. Click Start

    Captions begin streaming the moment you start speaking. Attendees on the viewer link see words appear in real time.

  3. Click Stop when done

    Stop the broadcast. The transcript and AI summary are immediately available — no post-production.

Why latency is the only metric that matters

Live captioning research keeps coming back to the same finding: attendees tolerate imperfect accuracy far better than they tolerate slow captions. A caption that lands four seconds after the speaker says the word feels like it belongs to the previous sentence. The mind disengages. People stop reading.

EventRecast's pipeline is designed around that constraint. Capture, transcribe, distribute — the whole loop is measured and tuned. The result is real-time in the way attendees mean it: synchronous enough to feel like part of the event, not a delayed transcript scrolling beneath it.

Frequently asked questions

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Related

Multi-language translation

Translate captions in real time so attendees can read in their preferred language.

Live captions for conferences

How conferences use real-time captions across every session.

Searchable transcripts

Every captioned event becomes a transcript attendees can search after the fact.