immran

Hi Guys,
      
      I have used api v1 in my project and I came to know that v1 is deprecated. Now, I'm using api v2 and I have changed the key from AIzaSyCnl6MRydhw_5fLXIdASxkLJzcJh5iX0M4 to AIzaSyBOti4mM-6x9WDnZIjIeyEU21OpBXqWBgw as mentioned in https://github.com/gillesdemey/google-speech-v2. Now I am getting response but it looks like empty. 
      
      { "result": [ ] }
      
      Any suggestions on this issue?