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

https://www.livebinders.com/b/3710045?tabid=ddb19a61-a239-51a3-7698-021a4e22c253

I didn't expect acoustics to matter, yet perforation patterns, backing products, and panel midsts in metal ceilings tame echo while keeping crisp, modern lines.