When words and images compete, pictures win and your viewers misunderstand your story. But when words, images and audio work together, you give your story greater power and meaning.
Explain the video
Enrich viewers' understanding of your story. Don't simply tell them what they are seeing in the video. Explain what they are not seeing. But be careful: Don't talk about something complete unrelated to the video. It will confuse viewers and they won't remember what you said.
Put the viewer at the scene with natural sound