flickering vol animation help me!!!

i made an animation where frame is set on right speaker volume (4). now the animation is running completely flickering, with frames where you can see the background as if the animation was not synchronized to the graphic card or something like this. I tried different variations of delay but couldn´t manage it. Is there a way to synchronize it and (!) to "smoothen" the volume values to get the animation smoother and not that hectic? Another thing is that obviously when the speaker vol has the value 0, you don´t see frame one but no frame at all. Think that wouldn´t be a problem when all following frames would hide the first one, then i could just leave it visible, but thats not possible in my case. please help me!!

