Simple example using Speech To Text API of IBM's Bluemix platform in python

ibm_speech_to_text.py

#  https://console.ng.bluemix.net/catalog/speech-to-text/
#  pip requests module required 

import requests

url = 'https://stream.watsonplatform.net/speech-to-text/api/v1/recognize'
username = '<username>'
password = '<password>'

headers={'Content-Type': 'audio/wav'}

audio = open('./sheet.wav', 'rb')

r = requests.post(url, data=audio, headers=headers, auth=(username, password))

print(r.text)