Example
json
{
"type": "conversation.item.input_audio_transcription.delta",
"event_id": "event_CCXGRxsAimPAs8kS2Wc7Z",
"item_id": "item_CCXGQ4e1ht4cOraEYcuR2",
"content_index": 0,
"delta": "Hey",
"obfuscation": "aLxx0jTEciOGe"
}conversation.item.input_audio_transcription.segment
Returned when an input audio transcription segment is identified for an item.