获取自动加注标点符号功能

本页介绍了如何在 Speech-to-Text 的转录结果中获取自动加注标点符号功能。启用此功能后，Speech-to-Text 会自动推断出您的音频数据中出现的句号、逗号和问号，并将它们添加到转录文本中。

默认情况下，Speech-to-Text 不在语音识别结果中添加标点符号。不过，您可以要求 Speech-to-Text 在转录结果中自动检测和插入标点符号。启用自动加注标点符号功能后，Speech-to-Text 还会自动将每个句号和问号后的第一个字母大写。

准备工作

  1. Sign in to your Google Cloud account. If you're new to Google Cloud, create an account to evaluate how our products perform in real-world scenarios. New customers also get $300 in free credits to run, test, and deploy workloads.

  2. In the Google Cloud console, on the project selector page, select or create a Google Cloud project.

    Go to project selector

  3. Make sure that billing is enabled for your Google Cloud project.

  4. Enable the Speech-to-Text APIs.

    Enable the APIs

  5. Make sure that you have the following role or roles on the project: Cloud Speech Administrator

    Check for the roles

    1. In the Google Cloud console, go to the IAM page.

      Go to IAM
    2. Select the project.

    3. In the Principal column, find all rows that identify you or a group that you're included in. To learn which groups you're included in, contact your administrator.

    4. For all rows that specify or include you, check the Role colunn to see whether the list of roles includes the required roles.

    Grant the roles

    1. In the Google Cloud console, go to the IAM page.

      前往 IAM
    2. 选择项目。
    3. 点击 授予访问权限。

    4. 在新的主账号字段中，输入您的用户标识符。 这通常是 Google 账号的电子邮件地址。

    5. 在选择角色列表中，选择一个角色。
    6. 如需授予其他角色，请点击 添加其他角色，然后添加其他各个角色。
    7. 点击保存。
    8. Install the Google Cloud CLI.

    9. To initialize the gcloud CLI, run the following command: 

      gcloud init

    10. In the Google Cloud console, on the project selector page, select or create a Google Cloud project.

      Go to project selector

    11. Make sure that billing is enabled for your Google Cloud project.

    12. Enable the Speech-to-Text APIs.

      Enable the APIs

    13. Make sure that you have the following role or roles on the project: Cloud Speech Administrator

      Check for the roles

      1. In the Google Cloud console, go to the IAM page.

        Go to IAM
      2. Select the project.

      3. In the Principal column, find all rows that identify you or a group that you're included in. To learn which groups you're included in, contact your administrator.

      4. For all rows that specify or include you, check the Role colunn to see whether the list of roles includes the required roles.

      Grant the roles

      1. In the Google Cloud console, go to the IAM page.

        前往 IAM
      2. 选择项目。
      3. 点击 授予访问权限。

      4. 在新的主账号字段中，输入您的用户标识符。 这通常是 Google 账号的电子邮件地址。

      5. 在选择角色列表中，选择一个角色。
      6. 如需授予其他角色，请点击 添加其他角色，然后添加其他各个角色。
      7. 点击保存。
      8. Install the Google Cloud CLI.

      9. To initialize the gcloud CLI, run the following command: 

        gcloud init

        10. 客户端库可以使用应用默认凭据轻松进行 Google API 身份验证，并向这些 API 发送请求。借助应用默认凭据，您可以在本地测试应用并部署它，无需更改底层代码。如需了解详情，请参阅 使用客户端库时进行身份验证。

      10. If you're using a local shell, then create local authentication credentials for your user account: 

        gcloud auth application-default login

        You don't need to do this if you're using Cloud Shell.

      此外，请确保您已安装客户端库。

      发出具有自动加注标点符号功能的转写请求

      以下代码示例演示了如何在转写请求中获取自动加注标点符号详细信息。

      Python

      import os

from google.cloud.speech_v2 import SpeechClient
from google.cloud.speech_v2.types import cloud_speech

PROJECT_ID = os.getenv("GOOGLE_CLOUD_PROJECT")


def transcribe_auto_punctuation_v2(audio_file: str) -> cloud_speech.RecognizeResponse:
    """Transcribe an audio file with automatically detect and insert punctuation in transcription results.
    Args:
        audio_file (str): Path to the local audio file to be transcribed.
    """
    # Instantiates a client
    client = SpeechClient()

    # Reads a file as bytes
    with open(audio_file, "rb") as f:
        audio_content = f.read()

    config = cloud_speech.RecognitionConfig(
        auto_decoding_config=cloud_speech.AutoDetectDecodingConfig(),
        language_codes=["en-US"],
        model="long",
        features=cloud_speech.RecognitionFeatures(
            # Enable automatic punctuation
            enable_automatic_punctuation=True,
        ),
    )

    request = cloud_speech.RecognizeRequest(
        recognizer=f"projects/{PROJECT_ID}/locations/global/recognizers/_",
        config=config,
        content=audio_content,
    )

    # Transcribes the audio into text
    response = client.recognize(request=request)

    for result in response.results:
        print(f"Transcript: {result.alternatives[0].transcript}")

    return response

      如需详细了解如何配置不同的功能，请参阅 RecognitionFeatures 参考文档。

      清理

      为避免因本页中使用的资源导致您的 Google Cloud 账号产生费用，请按照以下步骤操作。

      1. Optional: Revoke the authentication credentials that you created, and delete the local credential file. 

        gcloud auth application-default revoke

      2. Optional: Revoke credentials from the gcloud CLI. 

        gcloud auth revoke

      控制台

    14. In the Google Cloud console, go to the Manage resources page.

      Go to Manage resources

    15. In the project list, select the project that you want to delete, and then click Delete.
    16. In the dialog, type the project ID, and then click Shut down to delete the project.

      17. gcloud

      Delete a Google Cloud project:

      gcloud projects delete PROJECT_ID

      后续步骤