I really did not anticipate acoustics to matter, yet perforation patterns, backing products

https://www.scribd.com/document/1042304429/Breathing-Easy-for-a-Century-Personalized-Copper-Roof-Vents-that-Keep-Executing-176128

I didn't anticipate acoustics to matter, yet opening patterns, backing products, and panel midsts in steel ceilings tame reverberation while maintaining crisp, modern-day lines.