Patrick Baltzell has been the sound engineer for most of America’s most-watched events in the past few decades. He’s sitting alone in the convention halls of NAMM, a trade show for the music making industry. Though I instantly recognize his signature thin frame and curls of white hair, no one looks as Baltzell stands to greet me with unbridled enthusiasm. It’s likely everyone in this room has no idea who he is. But Baltzell was not only in charge of the audio for the past 19 Super Bowls (excluding this year’s) — he also currently designs and mixes sound for the Grammys, Oscars, and presidential inaugurations.