I'm happy to help you with sending a text message as an agent that stays within the

lk.transcription

topic and isn’t played as audio. Here’s a simple way to set it up: 1. Disable Audio Output: When you initialize the

AgentSession

, just set

audio_enabled=False

in

RoomOutputOptions

. This way, the agent won’t publish any audio tracks and will send only text to

lk.transcription

. 2. Send Text via `lk.transcription`: With audio disabled, the agent’s text responses will automatically go through the

lk.transcription

topic as text-only messages. 3. Frontend Handling: Make sure your frontend listens to the

lk.transcription

topic by using

registerTextStreamHandler

. Any messages without the

lk.transcribed_track_id

attribute will be text-only agent responses. If you'd like, I’m here to provide more details or examples to make the implementation smoother for you. Just let me know! Sources: Text and transcriptions | LiveKit Docs | How to Set Up Speech-to-Text Input with Text-Only Output in LiveKit Agents | examples/other/translation/multi-user-translator.py

I'd be happy to guide you through sending a text message as an agent that stays within the

lk.transcription

topic without being played as audio. Here’s a simple way to set it up: 1. Disable Audio Output: When you initialize the

AgentSession

, set

audio_enabled=False

in

RoomOutputOptions

. This step is key because it makes sure the agent only sends text to

lk.transcription

and doesn’t publish any audio tracks.

session = AgentSession(   
    llm=openai.LLM(),   
    room_input_options=RoomInputOptions(audio_enabled=False),   
    room_output_options=RoomOutputOptions(audio_enabled=False, transcription_enabled=True),
)

1. Frontend Handling: On the frontend side, please make sure you listen to the

lk.transcription

topic using

registerTextStreamHandler

. This way, messages that don’t have the

lk.transcribed_track_id

attribute are recognized as text-only agent responses.

room.registerTextStreamHandler('lk.transcription', async (reader, participantInfo) => {   
    const message = await reader.readAll();   
    if (reader.info.attributes['lk.transcribed_track_id']) {   
        console.log(`Transcription with audio: ${message}`);   
    } else {   
        console.log(`Text-only agent message: ${message}`);   
    }   
});

By following these steps and disabling

audio_enabled

, your agent will send messages as text-only within the

lk.transcription

topic, without creating any audio output. If you have any questions along the way, feel free to ask—I'm here to help!

Absolutely! When you use

session.say

, the message is automatically added to the

lk.transcription

topic in real time. This way, the text gets published as a transcription, perfectly synchronized with the audio playback if you have audio enabled. If you have any questions or want me to explain anything further, just let me know—I’m here to help!