Also saw this in the Gamesradar article
For example, specific quarterback cadences – the ‘Blue! 32! Hut Hut Hike!’ before every snap – have now been captured for most of the real NFL QBs for use in the game. When Tom Brady or Aaron Rodgers step to the line, you’ll be hearing their actual voices barking out the signals instead of a generic one. And that’s just the tip of the iceberg.