How to allow interruptions here: llm_instance = google.beta.realtime.RealtimeModel( model="gemini-live-2.5-flash-preview", temperature=1.0, instructions=realtime_instructions, # Use the fully formed instructions with emoji restriction modalities=[types.Modality.TEXT], ) tts = openai.TTS( model="gpt-4o-mini-tts", voice=openai_voice, instructions=f"You are a {language_name} tutor. Read the whole text with a subtle {language_name} accent", )

Thanks for reaching out, Phanos. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.

I want the user to be able to interrupt during realtime audio playback in a livekit room. Then the context should be truncated

I'm happy to guide you through allowing user interruptions during real-time audio playback in a LiveKit room and managing the context accordingly. Here's how you can set it up: • Enable Interruptions: You can enable interruptions by setting session options like

allow_interruptions=True

. To make it just right for your needs, you can adjust parameters such as

min_interruption_duration

(default is 0.5 seconds) and

min_interruption_words

(default is 0). • Truncate Context: When an interruption happens, LiveKit can automatically truncate the context with the

truncate

method. This method takes parameters like

message_id

and

audio_end_ms

to neatly finalize the audio and text output up to that interruption point. • Monitor Playback State: The

SpeechHandle

API is your friend here—it helps you wait for audio playback to finish and manage interruptions smoothly. The

playback_finished

event includes a

playback_position

field that tells you exactly where to truncate the message. • False Interruption Handling: To avoid cutting off audio too soon, you can set a

false_interruption_timeout

. This allows playback to resume if the user stops speaking briefly after an interruption is triggered. By setting these up, you'll ensure that the audio, transcription, and chat context stay perfectly in sync, creating a smooth and seamless experience for your users. If you'd like, I’m here to help you dive into any of these details further—just let me know! Sources: Agent speech and audio | LiveKit Docs | livekit-agents/livekit/agents/voice/agent_activity.py | agents/src/voice/agent_activity.ts | VoicePipelineAgent | LiveKit Docs | Turn detection and interruptions | LiveKit Docs

2025-09-15 192340,987 - WARNING - livekit.plugins.google - truncate is not supported by the Google Realtime API.

Thanks for reaching out! I wanted to let you know that the Google Realtime API doesn’t support the

truncate

method in LiveKit. This is something that’s clearly mentioned in both the Python and JavaScript versions of the Google Realtime plugin. So, when the

truncate

method is called, it simply logs a warning and doesn’t perform any action. To work around this, you might want to create your own way of managing context truncation—like limiting the conversation history or manually handling the context based on playback position. If you'd like, I’m here to help guide you through setting this up. Just let me know! Sources: livekit-plugins/livekit-plugins-openai/livekit/plugins/openai/realtime/real... | plugins/openai/src/realtime/realtime_model.ts