An Atlanta voice-over actress, Susan Bennett, says it's her – or at least was.
"I'm the voice actor who provided the voice of Siri," Bennett told CNN in an interview.
Bennett told the news network she worked four hours a day for the entire month of July 2005 recording segments in her home recording booth. She said she was paid by the hour but wouldn't say for how much.
Apple has since gone with another female voice for iOS 7.
However well-known their voices become, voice-over actors usually work in obscurity. For years virtually no one knew (and relatively few do now) that Elwood Edwards was the voice behind America Online's famous "You've got mail" phrase.
He also distinctively voiced "Files done" and "Goodbye" for the AOL service.