example python and output for using watson STT

stt.py

import json
from os.path import join, dirname
from ibm_watson import SpeechToTextV1
from ibm_watson.websocket import RecognizeCallback, AudioSource
import threading
from ibm_cloud_sdk_core.authenticators import IAMAuthenticator

authenticator = IAMAuthenticator('dnaxxxxxxYN4')
service = SpeechToTextV1(authenticator=authenticator)
service.set_service_url('https://stream.watsonplatform.net/speech-to-text/api')

#models = service.list_models().get_result()
#print(json.dumps(models, indent=2))

model = service.get_model('en-US_BroadbandModel').get_result()
print(json.dumps(model, indent=2))

with open('hello_world.wav', 'rb') as audio_file:
    print(json.dumps(
        service.recognize(
            audio=audio_file,
            content_type='audio/wav',
            timestamps=True,
            word_confidence=True).get_result(),
        indent=2))

stt_output.json

{
  "name": "en-US_BroadbandModel",
  "rate": 16000,
  "language": "en-US",
  "description": "US English broadband model.",
  "supported_features": {
    "custom_language_model": true,
    "speaker_labels": true
  },
  "url": "https://api.us-south.speech-to-text.watson.cloud.ibm.com/instances/7cb61ab5-ac76-430d-bcce-8adba47d0f7f/v1/models/en-US_BroadbandModel"
}
{
  "result_index": 0,
  "results": [
    {
      "final": true,
      "alternatives": [
        {
          "transcript": "how can I T. is the greatest hackathon event ever ",
          "confidence": 0.62,
          "timestamps": [
            [
              "how",
              0.0,
              0.22
            ],
            [
              "can",
              0.22,
              0.52
            ],
            [
              "I",
              0.52,
              0.65
            ],
            [
              "T.",
              0.65,
              0.91
            ],
            [
              "is",
              0.91,
              1.06
            ],
            [
              "the",
              1.06,
              1.16
            ],
            [
              "greatest",
              1.16,
              1.63
            ],
            [
              "hackathon",
              1.63,
              2.01
            ],
            [
              "event",
              2.01,
              2.47
            ],
            [
              "ever",
              2.51,
              2.96
            ]
          ],
          "word_confidence": [
            [
              "how",
              0.06
            ],
            [
              "can",
              0.08
            ],
            [
              "I",
              0.68
            ],
            [
              "T.",
              0.56
            ],
            [
              "is",
              0.65
            ],
            [
              "the",
              1.0
            ],
            [
              "greatest",
              0.94
            ],
            [
              "hackathon",
              0.03
            ],
            [
              "event",
              0.93
            ],
            [
              "ever",
              0.98
            ]
          ]
        }
      ]
    }
  ]
}