Video manipulation have been instances when this technology was used during political campaigns. The proof-of-principle software "Face2Face" was developed at Stanford University. Such advanced video manipulation must be ranked alongside and beyond previous examples of deep fakes. The concept of manipulating video can be traced back as far as the 1950s, when the 2 inch Quadruplex tape used in videotape recorders would be manually cut and spliced. After being coated with ferrofluid, the two ends of tape that were to be joined were painted with a mixture of iron filings and carbon tetrachloride, a toxic and carcinogenic compound to make the tracks
Erhard Kietz was mainly achieved through the emerging transistor technology and, only a little later, through integrated circuits with rapidly growing complexity. When one sees the current video recording devices, one cannot even imagine anymore how much signal processing is necessary for video recording and play-back. The first video recorders were housed in several cabinets full of electronics. Television video recording was practically a fall-out of the military application. From the end of the 1960s on into the 1980s, Ampex video tape recorders were utilized in television studios all over the world. During his tenure at Ampex Corporation, Dr. Erhard Kietz developed