Susan Bennett says she recorded Siri's voice, working four hours a day for a month back in 2005.
Siri doesn't sound quite the same today, over the last eight years, Apple has manipulated Bennett's voice to tweak the way Siri sounds.
And Bennett's voice might sound familiar, that's because she is also the voice for many GPS systems. The announcements made at Delta Airline terminals, and even the very first ATM machine.
