20 to 30 percent. According to the official CCTV video website, the background music of food videos accounts for 20 to 30% and cannot be adjusted too high. If the background music of the edited video cannot be too loud, the original sound will be blocked and the dubbing will be blocked. Short video is a short video, which is a way of disseminating Internet content. It is generally a video within 5 minutes that is disseminated on new Internet media.