title: why i can't play the full song on libgdx
body: <p>I have this sound track and I can't play it all. It always plays first of track like 5 seconds and then stops. It should be 63 seconds.</p>
  
  <pre><code>Sound sound;
  @Override
  public void create() { 
    soundback=Gdx.audio.newSound(Gdx.files.internal("background.wav"));
    soundback.play();
  }
  </code></pre>