Google 云 - 收到无效的 JSON 负载。 'config' 处的未知名称 "encoding":原型字段不重复,无法启动列表

Google Cloud - Invalid JSON payload received. Unknown name "encoding" at 'config': Proto field is not repeating, cannot start list

当我尝试使用以下配置调用 Google Cloud Speech to Text Api 进行长运行 识别时:

config = dict(
            languageCode='de',
            maxAlternatives=1,
            enableWordTimeOffsets=True,
            enableAutomaticPunctuation=True,
            model='default',
            encoding='ENCODING_UNSPECIFIED'
          )

我收到这个错误

Invalid JSON payload received. Unknown name "encoding" at 'config': Proto field is not repeating, cannot start list

如何解决?

能否请您提供更多信息...例如您在这部分项目中使用的是哪种语言和库版本?

假设您正在使用 Python,您可以找到另一种连接到 Google Cloud 的官方方式语音转文本 Api 此处:https://cloud.google.com/speech-to-text/docs/basics

我习惯的做法是使用 googleapiclient phyton 包和 JSON 数据结构而不是字典数据。

import base64
import googleapiclient.discovery

with open(speech_file, 'rb') as speech:
    # Base64 encode the binary audio file for inclusion in the JSON
    # request.
    speech_content = base64.b64encode(speech.read())

# Construct the request
service = googleapiclient.discovery.build('speech', 'v1')
service_request = service.speech().recognize(
    body={
        "config": {
            "encoding": "LINEAR16",  # raw 16-bit signed LE samples
            "sampleRateHertz": 16000,  # 16 khz
            "languageCode": "en-US",  # a BCP-47 language tag
        },
        "audio": {
            "content": speech_content
            }
        })

如果您不知道如何安装python包,请参考这篇官方文章:https://packaging.python.org/tutorials/installing-packages/#id13

LongRunning请求请参考: https://cloud.google.com/speech-to-text/docs/reference/rest/v1/speech/longrunningrecognize

本例中的配置 JSON 结构为:

{
  "config": {
    object(RecognitionConfig)
  },
  "audio": {
    object(RecognitionAudio)
  }
}

其中 RecognitionConfig 是一个 JSON 类型的对象:

{
  "encoding": enum(AudioEncoding),
  "sampleRateHertz": number,
  "languageCode": string,
  "maxAlternatives": number,
  "profanityFilter": boolean,
  "speechContexts": [
    {
      object(SpeechContext)
    }
  ],
  "enableWordTimeOffsets": boolean
}

RecognitionAudio是这样的:

{
  // Union field audio_source can be only one of the following:
  "content": string,
  "uri": string
  // End of list of possible types for union field audio_source.
}

LongRunning的识别,也可以参考这个link: https://developers.google.com/resources/api-libraries/documentation/speech/v1/java/latest/com/google/api/services/speech/v1/Speech.SpeechOperations.html

它展示了如何使用 Phyton 包 googleapiclient.discovery 来处理长 运行 请求,只需在你的 Phyton class 中使用以下方法即可:

...
service_request = service.speech().longrunningrecognize(
        body= {
            "config": {
                "encoding": "FLAC",
                "languageCode": "en-US",
                "enableWordTimeOffsets": True
            },
            "audio": {
                "uri": str('gs://speech-clips/'+self.audio_fqid)
            }
        }
    )
...