How AI simultaneous interpretation works

Interpretwise takes one clean audio feed from your stage, understands the speech, translates it with context-aware AI and speaks it back with natural neural voices in every target language at once - while producing live captions in each language.

The pipeline

Everything starts with a single audio feed and ends on every listener's device, in parallel for every language:

  1. 1

    Stage audio

    One feed from your sound console - any number of microphones, panels and playback sources, mixed by your engineer exactly as today.

  2. 2

    Speech recognition

    Streaming, phrase-aware recognition waits for phrases to stabilise, so the translator sees complete, settled sentences instead of fragments.

  3. 3

    AI translation

    Context-aware translation keeps a rolling context of the talk and honours your event glossary and terminology.

  4. 4

    Neural voice

    A natural neural voice speaks each target language in parallel, one channel per language.

  5. 5

    Delivery

    Audio and live captions reach every listener over WebRTC - phones in the hall, remote browsers, venue screens and production tools.

End-to-end delay is typically about 5 seconds from the spoken phrase to the interpreted voice. The platform measures this continuously: after every session you receive a per-language latency report (median and p99), so quality is verified with data, not impressions.

Engines and voices

Interpretwise runs several speech-recognition, translation and voice engines behind the scenes and picks the best combination for each language pair, with automatic failover between engines mid-session. Voices come in two tiers:

  • Premium voices - The most natural option, recommended for stage content.
  • Standard voices - A large catalogue covering the full language range at a lower rate.

Humans in the loop

The same event can mix AI interpretation and professional human interpreters channel by channel: for example AI for six languages and a human interpreter for the seventh. Interpreters work from anywhere through a browser-based console - no installs, protected by a per-event access code.

What attendees experience

Attendees scan a QR code, pick a language and listen on their own phone - with live captions in the same language. No app, no account, no headsets to distribute. See Audience without headsets for the full attendee flow.

Interpretwise listen page on a phone playing German interpretation with live captions
The attendee view: interpreted audio with live captions, on the attendee's own phone.

See It Live

Try Interpretwise at Your Next Event

40+ languages in real time - no booths, no dedicated receivers. Attendees scan a QR code and listen on their own phones. Full setup takes about 15 minutes.