def process_fast_transcription()

in function_app/src/components/speech.py [0:0]


def process_fast_transcription(transcription: Dict) -> Transcription:
    """
    Processes a transcription response from the Azure AI Speech Fast
    Transcription API.

    :param transcription: The raw API response from Azure AI Speech API.
    :type transcription: Dict
    :return: A processed Transcription object.
    :rtype: Transcription
    """
    word_count = 0
    # Phrases come sorted by channel -> offset. Sort by offset alone
    raw_phrases = sorted(transcription["phrases"], key=lambda phrase: phrase["offset"])
    processed_phrases: list[TranscribedPhrase] = list()
    for phrase_num, raw_phrase in enumerate(raw_phrases):
        raw_words = raw_phrase["words"]
        processed_words = [
            process_fast_word_dict(raw_word, word_count + i)
            for i, raw_word in enumerate(raw_words)
        ]
        word_count += len(raw_words)
        processed_phrases.append(
            process_fast_phrase_dict(raw_phrase, phrase_num, processed_words)
        )
    return Transcription(
        phrases=processed_phrases,
        transcription_type=AzureSpeechTranscriptionEnum.FAST,
        duration_secs=round(
            transcription["duration"]
            / TIME_DIVISORS[AzureSpeechTranscriptionEnum.FAST],
            3,
        ),
        language=None,
        raw_api_response=transcription,
    )