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How-to guide

How to translate your church service live — without hiring an interpreter

Josh Stannard

By Josh Stannard, Founder of Voco

Building practical live translation for churches. Updated June 25, 2026. 6 min read.

For most of church history, if you wanted to translate your service for non-English speakers, you had two options: hire a professional interpreter, or ask a bilingual volunteer to whisper in someone's ear. Both work. Neither scales. This guide shows you how live AI translation works, what it actually costs, and how to get it running before Sunday.

The problem with traditional interpretation

Hiring a professional interpreter typically costs between £150 and £400 per service per language. That's £7,500–£20,000 a year for a single language, every Sunday. Volunteer interpreters are cheaper but come with their own overhead — finding someone with the right fluency, preparing them with sermon notes, and managing their microphone setup. For most churches the result is simple: translation doesn't happen. Non-English-speaking members experience Sunday as a social event, not a spiritual one. They feel the warmth of the community but miss the words.

How live AI translation actually works

Live AI translation runs in three stages: speech recognition converts the pastor's voice to text; a translation engine converts that text into the target language; and translated lines appear on each attendee's phone. Delivery time varies with the audio, connection, and providers. There is nothing to install on attendee devices.

  • No special hardware required — connects to your existing sound desk
  • Attendees scan a QR code you display on screen — no app download needed
  • Multiple languages run simultaneously at no extra cost
  • Translation delivery time varies with the setup and connection
  • The pastor doesn't need to change a thing

What you need to get started

  1. 1An audio sourceConnect Voco to your mixing desk through a USB audio interface, or use a microphone connected to the computer running Voco. Follow the guided setup and allow time to check levels and rehearse on a second phone.
  2. 2A screen to display the QR codeYour projector, confidence monitor, or printed cards on seats all work. The QR code stays static — you can leave it on screen between slides.
  3. 3A stable internet connectionStandard church WiFi is fine. Voco uses roughly the same bandwidth as a voice call.
  4. 4A laptop or tablet to run the dashboardLog in to your Voco dashboard, select your languages, and click Start. That's the complete setup.

What does it cost?

Voco Starter is available at £24/month for one main weekly service, one or two regular language groups, and unlimited attendees. Compare current scope and service needs with the quote for a professional interpreter.

Live AI translation typically costs less per month than a single session with a professional interpreter.

Common concerns — answered honestly

  • "What about theological vocabulary?" — Translation handles common biblical terms well. For specialist vocabulary or proper names, add custom glossary entries in the Voco dashboard before the service.
  • "What if the WiFi drops?" — Translation pauses and resumes automatically when the connection returns. Attendees see a brief pause, not an error.
  • "Will it distract the congregation?" — Most members don't notice. Attendees read silently on their phones, the same way they might check a verse.
  • "Does the speaker need to change anything?" — No. A slightly slower pace improves accuracy, but no special technique is required.

Frequently asked questions

Is live AI translation accurate enough for sermons?

Translation quality varies by audio, language pair, speaker, terminology, and provider. Add important theological terms to the glossary and rehearse with native speakers before relying on it in a service.

Can we run Spanish, Yoruba, and Mandarin all at the same time?

Yes. Multiple translation channels run in parallel. Each attendee selects their own language from the QR code reader. There is no additional cost for running more languages simultaneously.

Do attendees need to create an account or download an app?

No. Attendees scan a QR code, select their language, and the translation appears immediately in their mobile browser. No account, no download, no registration required.

What happens during sung worship?

Most churches pause transcription during singing and restart when the speaker resumes. You can toggle this on and off from the Voco dashboard at any point during the service.

Related resources

All resources

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