轉錄本機檔案

轉錄短音訊檔案。

深入探索

如需包含這個程式碼範例的詳細說明文件，請參閱下列內容：

• 將轉錄要求傳送至 Cloud Speech-to-Text On-Prem

程式碼範例

Python

如要瞭解如何安裝及使用 Speech-to-Text 的用戶端程式庫，請參閱這篇文章。 詳情請參閱 Speech-to-Text Python API 參考說明文件。

如要向語音轉文字服務進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

def transcribe_onprem(
    local_file_path: str,
    api_endpoint: str,
) -> speech_v1p1beta1.RecognizeResponse:
    """
    Transcribe a short audio file using synchronous speech recognition on-prem

    Args:
      local_file_path: The path to local audio file, e.g. /path/audio.wav
      api_endpoint: Endpoint to call for speech recognition, e.g. 0.0.0.0:10000

    Returns:
      The speech recognition response
          {
    """
    # api_endpoint = '0.0.0.0:10000'
    # local_file_path = '../resources/two_channel_16k.raw'

    # Create a gRPC channel to your server
    channel = grpc.insecure_channel(target=api_endpoint)
    transport = speech_v1p1beta1.services.speech.transports.SpeechGrpcTransport(
        channel=channel
    )

    client = speech_v1p1beta1.SpeechClient(transport=transport)

    # The language of the supplied audio
    language_code = "en-US"

    # Sample rate in Hertz of the audio data sent
    sample_rate_hertz = 16000

    # Encoding of audio data sent. This sample sets this explicitly.
    # This field is optional for FLAC and WAV audio formats.
    encoding = speech_v1p1beta1.RecognitionConfig.AudioEncoding.LINEAR16
    config = {
        "encoding": encoding,
        "language_code": language_code,
        "sample_rate_hertz": sample_rate_hertz,
    }
    with io.open(local_file_path, "rb") as f:
        content = f.read()
    audio = {"content": content}

    response = client.recognize(request={"config": config, "audio": audio})
    for result in response.results:
        # First alternative is the most probable result
        alternative = result.alternatives[0]
        print(f"Transcript: {alternative.transcript}")

    return response

後續步驟

如要搜尋及篩選其他 Google Cloud 產品的程式碼範例，請參閱Google Cloud 範例瀏覽器。