Launching a program with Voce

Question

I've compiled with success my first program with the Voce library but when I start the program, it stops right after. I can't say any word and it stops

#include <iostream>
#include <string>
#include <voce.h>
#include <windows.h>

using namespace std;

int main()
{
    voce::init("voce/lib", false, true, "voce/lib/grams", "digits");

    while (voce::getRecognizerQueueSize() > 0)
    {
        std::string s = voce::popRecognizedString();
        std::cout << "You said: " << s << std::endl;
    }

    system("PAUSE");
    return 0;

}

I took this code on : http://voce.sourceforge.net/

Thank you for your help