To share transcription events with everyone in a room, the best way is to use text streams on the 'lk.transcription' topic. This approach is really effective and ensures that transcription data is delivered in real-time and stays synchronized for all participants. Here’s a simple way to get this set up: 1. Use the

stream_text()

method on the local participant to send your transcription data. Make sure to set the topic to

'lk.transcription'

and include helpful metadata like

lk.transcribed_track_id

and

lk.segment_id

to keep everything in sync. 2. Other participants can receive these transcriptions by registering a handler for the

'lk.transcription'

topic using

registerTextStreamHandler()

. Here’s an example of how you might send a transcription:

const writer = await room.localParticipant.stream_text({
  topic: 'lk.transcription',
  attributes: {
    'lk.transcribed_track_id': trackSid,
    'lk.segment_id': 'segment-123',
    'lk.transcription.final': 'false'
  }
});

await writer.write("Hello world");
await writer.aclose({ 'lk.transcription.final': 'true' });

And to receive transcriptions, you can do this:

room.registerTextStreamHandler('lk.transcription', async (reader, participantInfo) => {
  let message = '';
  for await (const chunk of reader) {
    message += chunk;
    console.log(`Partial transcription:`, message);
  }
});

This way, everyone in the room will get the transcription events smoothly. If you have any questions or want to dive deeper into this, just let me know—I’m here to help! Sources: hooks/useDataStreamTranscriptions.ts | Text and transcriptions | LiveKit Docs | Text and transcriptions | LiveKit Docs | packages/core/src/observables/dataChannel.ts