Expanded Language Support for Real-Time Transcription

Real-time transcription in RealtimeKit now supports 10 languages with regional variants, powered by Deepgram Nova-3 running on Workers AI. Supported languages include English, Spanish, French, German, Hindi, Russian, Portuguese, Japanese, Italian, and Dutch.

Key Features

• Regional variants for major languages: en-AU, en-GB, en-IN, en-NZ, es-419, fr-CA, de-CH, pt-BR, and pt-PT
• Automatic multilingual detection available via the multi language option
• End-to-end processing on Cloudflare's network through AI Gateway, reducing latency compared to routing through external speech-to-text services

Implementation

Configure the language when creating a meeting via the ai_config.transcription.language parameter:

{
  "ai_config": {
    "transcription": {
      "language": "fr"
    }
  }
}

Use Cases

This enhancement enables developers building voice agents and real-time translation workflows to transcribe caller audio in their native language natively, without requiring extra services or custom routing logic.

Resources:

• Transcription documentation
• Nova-3 model page