To handle user silence and set a timeout for it in LiveKit, you can use the

user_away_timeout

parameter. Here's a brief overview of the process: • Set the

user_away_timeout

parameter when creating an AgentSession. For example:

session = AgentSession(
    vad=silero.VAD.load(),
    llm=openai.LLM(model="gpt-4o-mini"),
    stt=deepgram.STT(),
    tts=cartesia.TTS(),
    user_away_timeout=12.5,  # Set timeout to 12.5 seconds
)

• Handle the

user_state_changed

event to detect when the user goes into the "away" state and take appropriate actions. For example:

@session.on("user_state_changed")
def _user_state_changed(ev: UserStateChangedEvent):
    nonlocal inactivity_task
    if ev.new_state == "away":
        inactivity_task = asyncio.create_task(user_presence_task())
        return

    if inactivity_task is not None:
        inactivity_task.cancel()

• Define a task to handle inactivity, such as prompting the user or closing the session after multiple attempts. For example:

async def user_presence_task():
    for _ in range(3):
        await session.generate_reply(
            instructions=("The user has been inactive. Politely check if the user is still present.")
        )
        await asyncio.sleep(10)

    await asyncio.shield(session.aclose())
    ctx.delete_room()

This setup allows you to manage user silence effectively and take appropriate actions based on inactivity. Sources: GitHub::livekit::agents | livekit-plugins/livekit-plugins-gladia/livekit/pl...