# RealtimeServerEventConversationItemInputAudioTranscriptionDelta
## Properties
**event_id** | **String** | The unique ID of the server event. |
**r#type** | **String** | The event type, must be `conversation.item.input_audio_transcription.delta`. |
**item_id** | **String** | The ID of the item containing the audio that is being transcribed. |
**content_index** | Option<**i32**> | The index of the content part in the item's content array. | [optional]
**delta** | Option<**String**> | The text delta. | [optional]
**logprobs** | Option<[**Vec<models::LogProbProperties>**](LogProbProperties.md)> | The log probabilities of the transcription. These can be enabled by configurating the session with `\"include\": [\"item.input_audio_transcription.logprobs\"]`. Each entry in the array corresponds a log probability of which token would be selected for this chunk of transcription. This can help to identify if it was possible there were multiple valid options for a given chunk of transcription. | [optional]
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