Mediaplayer progress update to seekbar not smooth?

Question

I am working on an app with recorder and player. I am using mediaplayer to play the recorded .wav file and meantime I want to update to a seekbar. Everything is working fine But

Answer 1

player.prepare(); // or start()

ScheduledExecutorService service = Executors.newScheduledThreadPool(1);
service.scheduleWithFixedDelay(new Runnable()
{
  @Override
  public void run()
  {
    progressBar.setProgress(player.getCurrentPosition());
  }
}, 1, 1, TimeUnit.MICROSECONDS);