How can I make the agent ignore user input conditi...
# ask-ai
p
How can I make the agent ignore user input conditionally?
t
Thanks for reaching out, Mario. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.
I'm happy to help you understand how to conditionally ignore user input in LiveKit agents. Here are some friendly ways you can approach this: • Raise
StopResponse
in `on_user_turn_completed`:
This lets you prevent the agent from replying when certain conditions are met, like if the message is empty. It’s a neat way to keep things tidy! • Disable audio input dynamically: You can temporarily stop the agent from listening by using
setAudioEnabled(false)
. This comes in handy for tasks where no audio input is needed. • Use manual turn control: By setting
turn_detection="manual"
, you control exactly when the agent processes user input by calling
session.commit_user_turn()
. It gives you full control over the conversation flow. • Short transcript filtering: If you want to ignore very brief inputs automatically, you can set the
minInterruptionWords
option to filter those out. If you'd like, I can provide detailed examples or walk you through any of these methods step-by-step. Just let me know—I’m here to help! Sources: Docs::Agents | tests/test_agent_session.py | Text and transcriptions | LiveKit Docs | Text and transcriptions | LiveKit Docs | Turn detection and interruptions | LiveKit Docs
p
Alright. That works to block all audio. However, I just want to suppress user audio.
t
I'm happy to help you manage user audio without blocking all sounds. Here are some friendly tips you can try: • Client-Side Microphone Mute: You can use
setMicrophoneEnabled(false)
to gently pause the local user's microphone input, while still keeping other audio streams flowing. • AI Agent Sessions: If you're working with AI agents,
session.input.setAudioEnabled(false)
lets you stop the agent from listening to audio input, but the agent’s speech and other sounds will keep going. • Temporary Suppression: For tasks where you want to pause audio input briefly, try wrapping those tasks with audio input disable/enable blocks to avoid any speech queuing during processing. • UI-Level Muting: You can also combine
RoomAudioRenderer
with the
muted
option to control output, while handling input separately for more flexibility. If you'd like, I’d be more than happy to provide detailed examples or walk you through any of these options. Just let me know! Sources: Real-time audio and video in the Metaverse | livekit-android-sdk/src/main/java/io/livekit/android/room/Room.kt | Text and transcriptions | LiveKit Docs | Real-time audio and video in the Metaverse | packages/react/src/components/RoomAudioRenderer.tsx
p
I tried this, but it disabled session.say session.input.setAudioEnabled(false)
t
Hi there! I wanted to let you know that calling
session.input.setAudioEnabled(false)
shouldn’t actually disable
session.say
, since input and output are handled separately. To help you better, could you please let me know if you’re using the Node.js or Python SDK? Also, if you could share the exact code snippet where
session.say
is being used, that would be fantastic. This way, I can get a clearer picture and assist you more effectively. Looking forward to your reply! Sources: Text and transcriptions | LiveKit Docs | Docs::Agents | agents/src/voice/agent_session.ts | Agent-assisted warm transfer | LiveKit Docs
p
How can I intercept audio input, and if it's from the user, ignore it?
t
I'm glad you're exploring ways to manage user audio input in LiveKit! Here are some friendly tips to help you intercept and ignore audio input effectively: • Disable Audio Input Entirely: You can simply set
audio_enabled=False
in
RoomInputOptions
when you start your session—this way, no audio input will be captured at all. • Toggle Audio Input Dynamically: If you want more flexibility, try using
session.input.set_audio_enabled(False)
to pause listening and
session.input.set_audio_enabled(True)
to resume whenever you like. • Manual Turn Control: For more hands-on control, set
turn_detection="manual"
in
AgentSession
and manage audio activation yourself using RPC methods like
start_turn
and
end_turn
. • Android-Specific Handling: If you're working on Android, the
NoAudioHandler
is a great way to completely disable automatic audio handling. If you'd like, I’m here to provide detailed examples or walk you through any of these steps. Just let me know how I can assist you further! Sources: Text and transcriptions | LiveKit Docs | Docs::Agents | Text and transcriptions | LiveKit Docs | Turn detection and interruptions | LiveKit Docs | livekit-agents/livekit/agents/voice/room_io/room_io.py
p
This is the decorator I have
Copy code
def synchronized_function_tool(func: AsyncFunctionTool):
    """
    Naive approach to ensure the function tool can't be called concurrently.
    It stops listening to user input until the function tool returns or errors-out.

    Usage:
        @synchronized_function_tool
        async def my_function_tool(ctx: RunContext_T, *args, **kwargs):
            do_something()
    """

    @wraps(func)
    async def wrapper(ctx: RunContext_T, *args, **kwargs) -> Any:
        ctx.session.interrupt()
        ctx.session.input.set_audio_enabled(False)

        try:
            result = await func(ctx, *args, **kwargs)
        except Exception:
            raise
        finally:
            ctx.session.input.set_audio_enabled(True)
        return result

    return wrapper
And I have a function_tool that literally calls session.say, which raised the error below
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File "/Users/mariodes//.venv/lib/python3.10/site-packages/livekit/agents/voice/agent_session.py", line 700, in say
    handle = self._next_activity.say(
  File "/Users/mariodes//.venv/lib/python3.10/site-packages/livekit/agents/voice/agent_activity.py", line 747, in say
    self._schedule_speech(handle, SpeechHandle.SPEECH_PRIORITY_NORMAL)
  File "/Users/mariodes//.venv/lib/python3.10/site-packages/livekit/agents/voice/agent_activity.py", line 896, in _schedule_speech
    raise RuntimeError(
RuntimeError: cannot schedule new speech, the speech scheduling is draining/pausing
t
I understand how frustrating it can be to encounter the error
RuntimeError: cannot schedule new speech, the speech scheduling is draining/pausing
. This usually happens when the agent's speech scheduling is either paused or in the process of draining. Here’s a little more detail to help clarify: • Draining: This occurs when the agent is wrapping up its current session and stops accepting new speech tasks. • Pausing: This happens when the agent's speech scheduling is intentionally put on hold. • Agent Handoff: This takes place during transitions between agents, where the current agent needs to finish its tasks before the new one steps in. To help you avoid running into this error, here are some tips you might find useful: • You can use
force=True
when scheduling important speech tasks to bypass the draining check. • Make sure the agent isn’t in a draining or pausing state before calling
say()
. • Try to manage session states smoothly to prevent scheduling speech during transitions or shutdowns. If you’d like, I’m here to assist you with implementing these solutions or to provide any further explanations you might need. Just let me know! Sources: livekit-agents/livekit/agents/voice/agent_activity.py | agents/src/voice/agent_activity.ts