Walk into any Texas school cafeteria at 11:45 a.m. and you'll understand the problem before anyone explains it to you. Trays clatter. Four hundred kids talk at once. Chairs scrape across polished concrete. A teacher shouts over the din, and the shout itself becomes part of the noise. Sound bounces off cinderblock walls, steel roof decks, and hard vinyl flooring until the whole room feels like the inside of a drum. This isn't just an annoyance. Cafeteria noise control for Texa