HOW TO CONVERT TEXT TO SPEECH USING FREETTS 1.2.1

Question

import com.sun.speech.freetts.; import java.util.;

public class Demofreetts { private String speaktext; public void doSpeak(String speak, String voice) { speaktext = speak; try { VoiceManager voiceManager = VoiceManager.getInstance(); Voice voices = voiceManager.getVoice(voice); Voice sp = null;

   if(voices != null)
     sp = voices;

   else
     System.out.println("No Voice Available");



    sp.allocate();
    sp.speak(speaktext);
    sp.deallocate();



  }
 catch(Exception e)
  {
   e.printStackTrace();
  }
}

public static void main(String[]args) { Demofreetts obj = new Demofreetts(); obj.doSpeak(args[0],"Kelvin16"); } }

IT SHOWS ERRORS

System property "mbrola.base" is undefined. Will not use MBROLA voices No Voice Available java.lang.NullPointerException at Demofreetts.doSpeak(Demofreetts.java:24) at Demofreetts.main(Demofreetts.java:39)

PLEASE HELP ME.....I AM NEW FOR THIS