How to implement Google Voice in Cocos2d-x project?

Hi pro,
I’m making a game about English language where the players have to speak, answer some questions and do some tasks by their voice. How could I do that? I think of Google Voice API, which we must implement in native code and bind to our project, right? Or is there any Voice framework in C++?
Hope to see your help. Thanks so much! :wink: