Example

{
    "event_id": "event_2324",
    "type": "conversation.item.input_audio_transcription.failed",
    "item_id": "msg_003",
    "content_index": 0,
    "error": {
        "type": "transcription_error",
        "code": "audio_unintelligible",
        "message": "The audio could not be transcribed.",
        "param": null
    }
}

conversation.item.truncated

Returned when an earlier assistant audio message item is truncated by the client with a conversation.item.truncate event. This event is used to synchronize the server's understanding of the audio with the client's playback.

This action will truncate the audio and remove the server-side text transcript to ensure there is no text in the context that hasn't been heard by the user.