Last month, the actor Tom Hanks and the news anchor Gayle King warned their followers on social media that their likenesses had been used in unauthorized advertisements. Cybersecurity experts have also have also cautioned that technology like “voice deep fakes” could help scammers steal from people or businesses or commit other crimes.
Mr. Stewart’s family and his estate consented to the Calm project, according to Variety, which earlier reported the story.
Respeecher, founded in 2018, has synthesized voices for 150 projects, including the football coach Vince Lombardi. It is currently working with Warner Music France, it said, on an “animated biopic” of the French artist Edith Piaf, who died in 1963, that will use A.I. to generate her likeness and voice.
The company said it did not allow its technology to be used for “deceptive uses,” including uses that would impinge on a subject’s privacy and ability to find work.
“We know voice replication technology could be dangerous in the wrong hands,” Respeecher says on its site.