IBM Watson Speech To Text 未获得预期结果

Question

尝试在标准 IBM Watson S2T 模型上测试 mp3 文件时，我得到以下输出：

<bound method DetailedResponse.get_result of <ibm_cloud_sdk_core.detailed_response.DetailedResponse object at 0x00000250B1853700>>

这不是错误，但也不是我想要的输出。

这是我的代码：

api = IAMAuthenticator(api_key)
speech_to_text = SpeechToTextV1(authenticator=api)

speech_to_text.set_service_url(url)

with open(mp3-file, "rb") as audio_file:
    result = speech_to_text.recognize(
        model='de-DE_BroadbandModel', audio=audio_file, content_type="audio/mp3"
    ).get_result

print(result)

我对这个话题很陌生，还没有真正弄清楚参数是什么。我希望有一个像

这样的输出

{'result': [...]}

我关注了this tutorial。 我做错了什么？

Answer 1

这是使用示例对我有用的代码 audio_file2.mp3

import json
from os.path import join, dirname
from ibm_watson import SpeechToTextV1
from ibm_cloud_sdk_core.authenticators import IAMAuthenticator

authenticator = IAMAuthenticator('{api_key}')
speech_to_text = SpeechToTextV1(
    authenticator=authenticator
)

speech_to_text.set_service_url('{url}')

with open(join(dirname(__file__), './.', 'audio-file2.mp3'),
               'rb') as audio_file:
    speech_recognition_results = speech_to_text.recognize(
        audio=audio_file,
        content_type='audio/mp3',
        word_alternatives_threshold=0.9
    ).get_result()
print(json.dumps(speech_recognition_results, indent=2))

步骤：

1. 创建 Watson 后 Speech-to-Text service
2. 将 Python 代码中的 {url} 和 {api_key} 替换为 speech-to-text 服务凭据。
3. 保存代码为speech-to-text.py的文件。
4. 从命令提示符或终端，运行 pip install ibm-watson 然后 python speech-to-text.py 查看类似于下面所示的结果

更多选项请参考speech-to-text api docs。

{
  "result_index": 0,
  "results": [
    {
      "final": true,
      "alternatives": [
        {
          "transcript": "a line of severe thunderstorms with several possible tornadoes is approaching Colorado on Sunday ",
          "confidence": 1.0
        }
      ],
      "word_alternatives": [
        {
          "start_time": 0.2,
          "end_time": 0.35,
          "alternatives": [
            {
              "word": "a",
              "confidence": 0.94
            }
          ]
        },
        {
          "start_time": 0.35,
          "end_time": 0.69,
          "alternatives": [
            {
              "word": "line",
              "confidence": 0.94
            }
          ]
        },
        {
          "start_time": 0.69,
          "end_time": 0.78,
          "alternatives": [
            {
              "word": "of",
              "confidence": 1.0
            }
          ]
        },
        {
          "start_time": 0.78,
          "end_time": 1.13,
          "alternatives": [
            {
              "word": "severe",
              "confidence": 1.0
            }
          ]
        },
        {
          "start_time": 1.13,
          "end_time": 1.9,
          "alternatives": [
            {
              "word": "thunderstorms",
              "confidence": 1.0
            }
          ]
        },
        {
          "start_time": 4.0,
          "end_time": 4.18,
          "alternatives": [
            {
              "word": "is",
              "confidence": 1.0
            }
          ]
        },
        {
          "start_time": 4.18,
          "end_time": 4.63,
          "alternatives": [
            {
              "word": "approaching",
              "confidence": 1.0
            }
          ]
        },
        {
          "start_time": 4.63,
          "end_time": 5.21,
          "alternatives": [
            {
              "word": "Colorado",
              "confidence": 0.93
            }
          ]
        },
        {
          "start_time": 5.21,
          "end_time": 5.37,
          "alternatives": [
            {
              "word": "on",
              "confidence": 0.93
            }
          ]
        },
        {
          "start_time": 5.37,
          "end_time": 6.09,
          "alternatives": [
            {
              "word": "Sunday",
              "confidence": 0.94
            }
          ]
        }
      ]
    }
  ]
}

Answer 2

get_result是一个方法，所以你需要调用它。您正在打印方法，而不是调用它。因此你的输出显示

<bound method DetailedResponse.get_result ...

几个括号应该可以解决它。

with open(mp3-file, "rb") as audio_file:
    result = speech_to_text.recognize(
        model='de-DE_BroadbandModel', audio=audio_file, content_type="audio/mp3"
    ).get_result()