RealtimeServerEventOutputAudioBufferStarted

WebRTC Only: Emitted when the server begins streaming audio to the client. This event is
emitted after an audio content part has been added (response.content_part.added)
to the response.
Learn more.

{
    "event_id": "string",
    "type": "output_audio_buffer.started",
    "response_id": "string"
}