Researchers have crafted algorithms that can blend an audio recording of someone talking with a video of them saying something else – and create a new convincing lip-synched video with the replacement sound.
The resulting video carries the injected audio, rather than its original sound, and the frames are manipulated so that the speaker’s face and mouth movements match the new audio.
You can be forgiven for seeing this as a vital stepping stone to creating the ultimate fake news – highly believable forged video evidence. Imagine taking a clip of someone important speaking at a private event, and using the aforementioned software to dub in a completely new script, voiced by a skilled impersonator or generated by AI.
Thankfully, technology is nowhere near that level right now.