It is commonly known that videos have the original sound of the character; even the sound effects are real. The reality check is there are films and documentaries in which the background sounds, props sounds are all made after the movie is shot. If you make whiteboard anywhere, you need some words to explain the actions that are happening in the video. There are several elements removed during the editing of the video. An animator then has to work on voiceover and other elements that relate to video to enhance the quality of the animated video. Now you know the reason are you going to use it in your animated video?