can i use google speech recognition api in my desk

I want to know whether i can use speech recognition api of google for my desktop application. I have seen some example in which i have to convert the speech to a file and send to a url. But it will be little cumbersome task because in my application the user have to continuously submit his voice. So is there any other alternative to use google speech api. I am least interested to go with sphinx because its accuracy is very less and i dont know how to add new words in the dictionary and without adding it to dictionary it wont recognize new words. Any help would be appreciated.

Are you referring to ambient listening? I am actually working on some Voice Activity Detection algorithm with the Google Speech Recognition API. Although I haven't finished the algorithm yet, I've added a volume and frequency calculator so that you don't have to send requests to Google when the person is not talking. Here is the link to the source code.

https://github.com/The-Shadow/java-speech-api

(This isn't what I use, but it's simplistic. You can also add frequency threshold holds and stuff. I threw this code together so no guarantee it will work look at the example branch of the API.)

//package recognitionprocess;
//import org.jaudiotagger.audio.*;


import java.io.FileOutputStream;
import java.io.IOException;
import java.io.RandomAccessFile;

import javax.sound.sampled.AudioFileFormat;

import com.darkprograms.speech.recognizer.GoogleResponse;
import com.darkprograms.speech.recognizer.Recognizer;

public class RecognitionMain {

    public static void main(String[] args)  {
        try{
        ambientListening();
        }
        catch(Exception e){
            e.printStackTrace();
        }
    }

    private static void ambientListening() throws Exception{

        String filename = "tarunaudio.wav";//Your Desired FileName
        MicrophoneAnalyzer mic = new MicrophoneAnalyzer(AudioFileFormat.Type.WAVE);
       mic.open();
        mic.captureAudioToFile(filename);
        final int THRESHOLD = 10;//YOUR THRESHOLD VALUE.
        int ambientVolume = mic.getAudioVolume();//
        int speakingVolume = -2;
        boolean speaking = false;
            for(int i = 0; i<1||speaking; i++){
                int volume = mic.getAudioVolume();
                System.out.println(volume);
                if(volume>ambientVolume+THRESHOLD){
                    speakingVolume = volume;
                    speaking = true;
                    Thread.sleep(1000);
                    System.out.println("SPEAKING");
                }
                if(speaking && volume+THRESHOLD<speakingVolume){
                     break;
                }
                Thread.sleep(200);//Your refreshRate
            }
              mic.close();
            //You can also measure the volume across the entire file if you want
            //to be resource intensive.
            if(!speaking){
                 ambientListening();
            }
        Recognizer rec = new Recognizer(Recognizer.Languages.ENGLISH_US);
        GoogleResponse out = rec.getRecognizedDataForWave(filename);
        System.out.println(out.getResponse());
        ambientListening();
    }
}