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+- Migrated all realtime LLM service examples (OpenAI Realtime, Azure Realtime, Inworld, Grok/xAI Realtime, Gemini Live, Gemini Live Vertex, AWS Nova Sonic, Ultravox) — base examples, `persistent-context-*`, `update-settings/llm/*`, and the Gemini Live MCP example — to use `LLMContextAggregatorPair(..., realtime_service_mode=RealtimeServiceModeConfig())`. Where examples previously wired `SileroVADAnalyzer` into `LLMUserAggregatorParams` as a workaround for missing turn frames, the local VAD has been removed; the realtime service mode + the Phase 1.5 interruption fixes for Nova Sonic and Ultravox make this safe. Transcript-logging event handlers have moved from `on_user_turn_stopped` / `on_assistant_turn_stopped` to the new `on_user_message_added` / `on_assistant_message_added` events, which carry the finalized message text. Examples for services without server-side user-turn frames (Gemini Live, AWS Nova Sonic, Ultravox) include a Tier 1 comment block explaining what doesn't activate without those frames and how to add local VAD if needed; the corresponding service docstrings have the same warning.
diff --git a/changelog/+realtime-openai-local-vad-example.added.md b/changelog/+realtime-openai-local-vad-example.added.md
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+- Added `examples/realtime/realtime-openai-local-vad.py`, a variant of the base OpenAI Realtime example that disables OpenAI's server-side turn detection (`turn_detection=False`) and instead drives turn boundaries locally with `SileroVADAnalyzer` wired into the user aggregator. Use this variant if you need a turn analyzer like `LocalSmartTurnV3` to decide when the user is done speaking, or if you need `UserStartedSpeakingFrame` / `UserStoppedSpeakingFrame` to fire from the same source as `InterruptionFrame`. Server-emitted turn frames are preferred when available.