You're asking whether you can change the gpt-realtime model's server-side VAD parameters after a call has already started — short answer: no, you cannot. Details and alternatives: • Server-side VAD parameters (e.g., threshold, padding, silence duration) are set when the realtime session is initialized and cannot be updated during an active call. • Two practical workarounds: ◦ Use a client-side turn detector (for example, LiveKit's MultilingualModel/turn detector). Its session-level timing options (like

min_endpointing_delay

/

max_endpointing_delay

) can be adjusted at runtime. ◦ Restart the session with new VAD settings if you must use the server VAD (this disrupts the ongoing call). If you want, tell me which approach you prefer (client-side turn detector or session restart) and what parameters you want to change — I can walk you through the exact steps or code snippets. Sources: OpenAI Realtime API plugin guide | LiveKit docs | Agents (Python) | livekit/livekit_composite | DeepWiki | LiveKit turn detector plugin | LiveKit docs