{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://deepgram.com/schemas/deepgram/transcript.json",
  "title": "Deepgram Transcript",
  "description": "Schema representing a Deepgram transcription response including metadata, channel results, utterances, and audio intelligence features such as sentiment, topics, intents, and summarization.",
  "type": "object",
  "required": ["metadata", "results"],
  "properties": {
    "metadata": {
      "$ref": "#/$defs/Metadata"
    },
    "results": {
      "$ref": "#/$defs/Results"
    }
  },
  "$defs": {
    "Metadata": {
      "type": "object",
      "description": "Metadata about the transcription request and audio file.",
      "properties": {
        "transaction_key": {
          "type": "string",
          "description": "Unique identifier for the transaction."
        },
        "request_id": {
          "type": "string",
          "description": "Unique identifier for the API request."
        },
        "sha256": {
          "type": "string",
          "description": "SHA-256 hash of the submitted audio."
        },
        "created": {
          "type": "string",
          "format": "date-time",
          "description": "Timestamp when the request was created."
        },
        "duration": {
          "type": "number",
          "description": "Duration of the submitted audio in seconds.",
          "minimum": 0
        },
        "channels": {
          "type": "integer",
          "description": "Number of audio channels detected.",
          "minimum": 1
        },
        "models": {
          "type": "array",
          "items": {
            "type": "string"
          },
          "description": "Model identifiers used for transcription."
        },
        "model_info": {
          "type": "object",
          "additionalProperties": {
            "$ref": "#/$defs/ModelInfo"
          },
          "description": "Detailed information about models used, keyed by model UUID."
        }
      }
    },
    "ModelInfo": {
      "type": "object",
      "description": "Information about a specific model used for transcription.",
      "properties": {
        "name": {
          "type": "string",
          "description": "Name of the model."
        },
        "version": {
          "type": "string",
          "description": "Version of the model."
        },
        "arch": {
          "type": "string",
          "description": "Architecture of the model."
        }
      }
    },
    "Results": {
      "type": "object",
      "description": "Transcription results and audio intelligence analysis.",
      "properties": {
        "channels": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/Channel"
          },
          "description": "Transcription results organized by audio channel."
        },
        "utterances": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/Utterance"
          },
          "description": "Transcription results organized by utterance."
        },
        "summary": {
          "$ref": "#/$defs/Summary"
        },
        "sentiments": {
          "$ref": "#/$defs/SentimentResults"
        },
        "topics": {
          "$ref": "#/$defs/TopicResults"
        },
        "intents": {
          "$ref": "#/$defs/IntentResults"
        }
      }
    },
    "Channel": {
      "type": "object",
      "description": "Transcription data for a single audio channel.",
      "properties": {
        "alternatives": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/Alternative"
          },
          "description": "Alternative transcriptions ordered by confidence."
        },
        "detected_language": {
          "type": "string",
          "description": "Detected language of the audio in this channel.",
          "pattern": "^[a-z]{2}(-[A-Z]{2})?$"
        },
        "language_confidence": {
          "type": "number",
          "description": "Confidence score for the detected language.",
          "minimum": 0,
          "maximum": 1
        }
      }
    },
    "Alternative": {
      "type": "object",
      "description": "A single transcription alternative with confidence score.",
      "properties": {
        "transcript": {
          "type": "string",
          "description": "Full transcript text for this alternative."
        },
        "confidence": {
          "type": "number",
          "description": "Confidence score for this alternative.",
          "minimum": 0,
          "maximum": 1
        },
        "words": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/Word"
          },
          "description": "Individual words with timing and confidence information."
        },
        "paragraphs": {
          "$ref": "#/$defs/ParagraphGroup"
        }
      }
    },
    "Word": {
      "type": "object",
      "description": "A single transcribed word with timing and metadata.",
      "required": ["word", "start", "end", "confidence"],
      "properties": {
        "word": {
          "type": "string",
          "description": "The transcribed word."
        },
        "start": {
          "type": "number",
          "description": "Start time of the word in seconds.",
          "minimum": 0
        },
        "end": {
          "type": "number",
          "description": "End time of the word in seconds.",
          "minimum": 0
        },
        "confidence": {
          "type": "number",
          "description": "Confidence score for this word.",
          "minimum": 0,
          "maximum": 1
        },
        "speaker": {
          "type": "integer",
          "description": "Speaker identifier when diarization is enabled.",
          "minimum": 0
        },
        "punctuated_word": {
          "type": "string",
          "description": "The word with punctuation applied."
        },
        "sentiment": {
          "type": "string",
          "enum": ["positive", "negative", "neutral"],
          "description": "Sentiment of the word when sentiment analysis is enabled."
        },
        "sentiment_score": {
          "type": "number",
          "description": "Sentiment confidence score for this word.",
          "minimum": -1,
          "maximum": 1
        }
      }
    },
    "ParagraphGroup": {
      "type": "object",
      "description": "Transcript organized into paragraphs.",
      "properties": {
        "transcript": {
          "type": "string",
          "description": "Full transcript organized into paragraphs."
        },
        "paragraphs": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/Paragraph"
          },
          "description": "Individual paragraph objects."
        }
      }
    },
    "Paragraph": {
      "type": "object",
      "description": "A paragraph segment of the transcript.",
      "properties": {
        "sentences": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/Sentence"
          },
          "description": "Sentences within this paragraph."
        },
        "start": {
          "type": "number",
          "description": "Start time of the paragraph in seconds.",
          "minimum": 0
        },
        "end": {
          "type": "number",
          "description": "End time of the paragraph in seconds.",
          "minimum": 0
        },
        "num_words": {
          "type": "integer",
          "description": "Number of words in this paragraph.",
          "minimum": 0
        },
        "speaker": {
          "type": "integer",
          "description": "Speaker identifier for this paragraph.",
          "minimum": 0
        }
      }
    },
    "Sentence": {
      "type": "object",
      "description": "A sentence within a paragraph.",
      "properties": {
        "text": {
          "type": "string",
          "description": "Sentence text."
        },
        "start": {
          "type": "number",
          "description": "Start time of the sentence in seconds.",
          "minimum": 0
        },
        "end": {
          "type": "number",
          "description": "End time of the sentence in seconds.",
          "minimum": 0
        }
      }
    },
    "Utterance": {
      "type": "object",
      "description": "A speech utterance segment with speaker and timing information.",
      "properties": {
        "id": {
          "type": "string",
          "description": "Unique identifier for this utterance."
        },
        "start": {
          "type": "number",
          "description": "Start time of the utterance in seconds.",
          "minimum": 0
        },
        "end": {
          "type": "number",
          "description": "End time of the utterance in seconds.",
          "minimum": 0
        },
        "confidence": {
          "type": "number",
          "description": "Confidence score for this utterance.",
          "minimum": 0,
          "maximum": 1
        },
        "channel": {
          "type": "integer",
          "description": "Audio channel index for this utterance.",
          "minimum": 0
        },
        "transcript": {
          "type": "string",
          "description": "Transcript text for this utterance."
        },
        "words": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/Word"
          },
          "description": "Individual words within this utterance."
        },
        "speaker": {
          "type": "integer",
          "description": "Speaker identifier for this utterance.",
          "minimum": 0
        }
      }
    },
    "Summary": {
      "type": "object",
      "description": "Summary of the transcribed or analyzed content.",
      "properties": {
        "short": {
          "type": "string",
          "description": "Short summary of the content."
        }
      }
    },
    "SentimentResults": {
      "type": "object",
      "description": "Sentiment analysis results for the content.",
      "properties": {
        "segments": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/SentimentSegment"
          },
          "description": "Sentiment analysis for individual segments."
        },
        "average": {
          "$ref": "#/$defs/SentimentAverage"
        }
      }
    },
    "SentimentSegment": {
      "type": "object",
      "description": "Sentiment analysis for a single content segment.",
      "properties": {
        "text": {
          "type": "string",
          "description": "Text of the segment."
        },
        "start_word": {
          "type": "integer",
          "description": "Index of the first word in this segment.",
          "minimum": 0
        },
        "end_word": {
          "type": "integer",
          "description": "Index of the last word in this segment.",
          "minimum": 0
        },
        "sentiment": {
          "type": "string",
          "enum": ["positive", "negative", "neutral"],
          "description": "Overall sentiment of the segment."
        },
        "sentiment_score": {
          "type": "number",
          "description": "Confidence score for the sentiment classification.",
          "minimum": -1,
          "maximum": 1
        }
      }
    },
    "SentimentAverage": {
      "type": "object",
      "description": "Average sentiment across all segments.",
      "properties": {
        "sentiment": {
          "type": "string",
          "enum": ["positive", "negative", "neutral"],
          "description": "Overall average sentiment."
        },
        "sentiment_score": {
          "type": "number",
          "description": "Average sentiment score.",
          "minimum": -1,
          "maximum": 1
        }
      }
    },
    "TopicResults": {
      "type": "object",
      "description": "Topic detection results for the content.",
      "properties": {
        "segments": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/TopicSegment"
          },
          "description": "Topic detection for individual segments."
        }
      }
    },
    "TopicSegment": {
      "type": "object",
      "description": "Topic detection for a single content segment.",
      "properties": {
        "text": {
          "type": "string",
          "description": "Text of the segment."
        },
        "start_word": {
          "type": "integer",
          "description": "Index of the first word in this segment.",
          "minimum": 0
        },
        "end_word": {
          "type": "integer",
          "description": "Index of the last word in this segment.",
          "minimum": 0
        },
        "topics": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/Topic"
          },
          "description": "Topics detected in this segment."
        }
      }
    },
    "Topic": {
      "type": "object",
      "description": "A detected topic with confidence score.",
      "properties": {
        "topic": {
          "type": "string",
          "description": "Detected topic label."
        },
        "confidence_score": {
          "type": "number",
          "description": "Confidence score for the topic detection.",
          "minimum": 0,
          "maximum": 1
        }
      }
    },
    "IntentResults": {
      "type": "object",
      "description": "Intent recognition results for the content.",
      "properties": {
        "segments": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/IntentSegment"
          },
          "description": "Intent recognition for individual segments."
        }
      }
    },
    "IntentSegment": {
      "type": "object",
      "description": "Intent recognition for a single content segment.",
      "properties": {
        "text": {
          "type": "string",
          "description": "Text of the segment."
        },
        "start_word": {
          "type": "integer",
          "description": "Index of the first word in this segment.",
          "minimum": 0
        },
        "end_word": {
          "type": "integer",
          "description": "Index of the last word in this segment.",
          "minimum": 0
        },
        "intents": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/Intent"
          },
          "description": "Intents detected in this segment."
        }
      }
    },
    "Intent": {
      "type": "object",
      "description": "A detected intent with confidence score.",
      "properties": {
        "intent": {
          "type": "string",
          "description": "Detected intent label."
        },
        "confidence_score": {
          "type": "number",
          "description": "Confidence score for the intent recognition.",
          "minimum": 0,
          "maximum": 1
        }
      }
    }
  }
}