This is an article from Synthesia blog that applies AI technology to media marketing with the wording “Synthetic media”. The company's main field is to transfer the facial expressions and lip shape of the model in the video from another video and synthesize (adjust?) it. For example, if there is a video taken by Beckham (speaking in English), another person (the public) shoots a video in 9 different languages, and AI technology is applied to eventually create a video that Beckham speaks in 9 languages. .
In fact, it might be possible to add subtitles, but the company claims that there are differences in user experience in certain fields (marketing, education). Going a little further, in the post at the link below, "Old Media" (such as TV) -> “ New Media” (Internet, Smartphone, Web) era to the “Synthetic Media” (creation/synthesis) era. Synthetic Media is not as paradigm shift as from Old Media to New Media, but it is related to the flow from Real (Human) to Virtual (AI), so we will continue to pay attention.