API or SDK for speech to text(speech recognition ) iphone

Question

Hi I want to have a speech recognition api or sdk which recognises the speech spoken by the user and gives it\'s text form.

Detailed Description is as follows:

Answer 1

You can try

http://www.politepix.com/openears/

As for speed, it should be fast, you probably don't use it properly. As I understood you have text already and you need to build grammar from this text.