offline voice recognization for voice calculator

i am building an application "Voice Calculator" which takes input as a voice and display result based on the input. i dont want to use a google servers for voice recognization, is there any way through i can achive my goal. i want to take input as " two plus three multiply four hundred twenty two minus one hundred" etc. so i would like to record and compare every words, that can be converted in to text and which can be used to perform calculation开发者_StackOverflow. can any one guide me , how to achive this? i am done with designing calculator with its functionality, i hope i am able to explain my doubt, looking for help.. thank u..

I have used Google API for voice recognition, although I wanted an off-line version, I need to rely on voice recognition. Have a look at Voice Recognization for android example.

Granted that not many device support it yet, but Jelly Bean will allow you to download Google's voice controls to the device for offline use.