Enable Spoken Captions and Choose a Voice

Configure an eligible TTS provider, model, voice, gender/speaker option, speed, and languages.

Written By 4ALL.LIVE

Last updated 12 days ago

Configure an eligible TTS provider, model, voice, gender/speaker option, speed, and languages.

Best for: Multilingual producers, caption operators, accessibility leads, event administrators, and authorized language reviewers.

Before you start

Translation, target-language count, glossaries, and text-to-speech depend on event permissions, provider/model/language support, plan entitlements, usage allowances or wallet, and eligible BYOK configuration.

  • Confirm source language and provider quality first.
  • List approved target locales, terminology, voice requirements, and human review responsibilities.
  • Test with representative content before distributing viewer links.

Step by step

Text-to-speech controls in 4All Live Setup
Enable spoken captions deliberately and verify the selected voice and viewer behavior.
  1. Confirm audience need. Decide personal viewer playback versus another approved listening workflow.
  2. Check entitlement/usage. Verify TTS feature, provider funding/BYOK, wallet, and supported target languages.
  3. Choose provider/model. Azure voices are locale-bound; Google Chirp 3 named speakers can be cross-locale; Speechmatics availability depends on configuration.
  4. Choose voice. Select gender/voice/speaker supported for the language/model.
  5. Set speed. Keep intelligibility and lag within the audience need.
  6. Prevent feedback. Use headphones and keep TTS playback out of capture/mixer inputs.
  7. Test browser interaction. Autoplay often requires a viewer tap.
  8. Test long event behavior. Watch queue, interruption, language switch, network, and usage.
  9. Publish viewer instructions. Explain opt-in, volume, headphones, and stop controls.

What success looks like: The configured language service produces the intended accessible output with known quality, latency, usage, and recovery behavior.

Check your setup

  • A viewer can deliberately start intelligible speech in the selected language/voice without feeding it back into recognition.

Troubleshooting

No voice for locale

Choose another supported provider/voice; Azure may fall back to a default when the language list is empty.

No playback

Require a user gesture, check media output/volume/Bluetooth, and provider state.

Speech lags

Reduce queue/speed mismatch or source/translation finalization delay.

Security and operational notes

  • TTS is generated audio, not a human interpreter.
  • Use headphones near microphones.
  • Do not auto-play unexpectedly.