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I use this start and end turn methods to stop the ...
# ask-ai
f
I use this start and end turn methods to stop the ai agent talking and respond only when i am finished. How do i achieve the same for text messages? @ctx.room.local_participant.register_rpc_method("start_turn") async def start_turn(data: rtc.RpcInvocationData): logger.info(f"Starting turn for {data.caller_identity}") session.interrupt() session.clear_user_turn() room_io.set_participant(data.caller_identity) # this line might not be needed since we have a single participant session.input.set_audio_enabled(True) @ctx.room.local_participant.register_rpc_method("end_turn") async def end_turn(data: rtc.RpcInvocationData): logger.info(f"Ending turn for {data.caller_identity}") session.input.set_audio_enabled(False) session.commit_user_turn(transcript_timeout=3.0)
t
Thanks for reaching out, muse. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.
If you want to set up similar 
start_turn
and 
end_turn
methods for text messages, you can do this by using manual turn control with RPC calls. Here’s a simple way to get it done: 1. First, configure manual turn detection in the 
AgentSession
by setting 
turn_detection="manual"
. 2. Next, disable audio input by default and only turn it on when you need it using 
session.input.set_audio_enabled(False)
. 3. Then, implement these RPC methods: start_turn:
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@ctx.room.local_participant.register_rpc_method("start_turn")
async def start_turn(data: rtc.RpcInvocationData):
    session.interrupt()  # Stop any current agent speech
    session.clear_user_turn()  # Clear any previous input
    session.input.set_audio_enabled(True)  # Start listening
end_turn:
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@ctx.room.local_participant.register_rpc_method("end_turn")
async def end_turn(data: rtc.RpcInvocationData):
    session.input.set_audio_enabled(False)  # Stop listening
    session.commit_user_turn()  # Process the input and generate a response
These methods give you manual control over turns, creating a push-to-talk style interface for text messages. If you want to see a full example, check out the Push-to-Talk Agent example. It’s a great resource to help you get started! Sources: Turn detection and interruptions | LiveKit Docs | livekit-plugins/livekit-plugins-aws/livekit/plugins/aws/experimental/realti...
f
I already have these methods, but they do not work for text
t
Hey there! Just a quick heads-up: the 
start_turn
and 
end_turn
methods are mainly meant for audio input and manual turn control. When it comes to text input, LiveKit has a smoother way to handle it through the 
lk.chat
text stream. Here’s a friendly guide to help you adjust your setup: 1. Text input is automatically taken care of by the agent as soon as it comes in via the 
lk.chat
stream. So, no need to manually start or end turns for text. 2. If you want to have manual control, here are some handy methods you can use: Example:
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# Switch to text input mode
session.input.set_audio_enabled(False)

# When text is received
text = "User input"
session.interrupt()  # Pause any current agent speech
session.generate_reply(user_input=text)  # Handle the input and get a response
Just a couple of things to keep in mind: • Text input doesn’t need the same turn detection as audio input does. • If you want, you can turn off text input completely by setting 
text_enabled=False
in 
RoomInputOptions
. If anything’s unclear or you want a hand with this, just give me a shout—I’m here to help! Sources: Agents v0.x migration guide | LiveKit Docs | Text and transcriptions | LiveKit Docs
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