Joe Buck: Pretty much a done deal FOX will use fake crowd noise
DGA Quarterly Magazine, Fall 2011
weekend free-for-all - January 27-28, 2018 — Ask a Manager
NFL Games Might Use Virtual Fans and Fake Crowd Noise
FOX Sports to use virtual fans for MLB games, in talks with NFL
What will NFL game broadcasts look like in 2020? Crowd noise
Virtual fans, cutouts, fake crowd noise: Welcome to a new NFL game