USFL Mixers for Fox, NBC Find Their Rhythm on a Profusion of Audio Sources
How Does the NFL Create Fake Crowd Noise?
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Alan Pergament: Like Bills, NFL broadcast lacked energy
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Fox Sports' Joe Buck Says NFL Games Will Have Fake Noise, Fan Images – Deadline
Virtual NFL fans will only be seen on one Week 1 game
Even the virtual fans booed the Eagles off the field in Philadelphia
Virtual fans, cutouts, fake crowd noise: Welcome to a new NFL game experience - The Athletic
As strange as it sounds: Experiencing a Lions game with no fans and piped-in crowd noise