realtime how-to and ref updates

Author: eric-urban

articles/ai-services/openai/how-to/realtime-audio.md

@@ -116,7 +116,7 @@ Often, the first event sent by the caller on a newly established `/realtime` ses
 
 The [`session.update`](../realtime-audio-reference.md#realtimeclienteventsessionupdate) event can be used to configure the following aspects of the session:
 - Transcription of user input audio is opted into via the session's `input_audio_transcription` property. Specifying a transcription model (`whisper-1`) in this configuration enables the delivery of [`conversation.item.audio_transcription.completed`](../realtime-audio-reference.md#realtimeservereventconversationiteminputaudiotranscriptioncompleted) events.
-- Turn handling is controlled by the `turn_detection` property. This property's type can be set to `none` or `server_vad` as described in the [input audio buffer and turn handling](#input-audio-buffer-and-turn-handling) section.
+- Turn handling is controlled by the `turn_detection` property. This property's type can be set to `none` or `server_vad` as described in the [voice activity detection (VAD) and the audio buffer](#voice-activity-detection-vad-and-the-audio-buffer) section.
 - Tools can be configured to enable the server to call out to external services or functions to enrich the conversation. Tools are defined as part of the `tools` property in the session configuration.
 
 An example `session.update` that configures several aspects of the session, including tools, follows. All session parameters are optional and can be omitted if not needed.