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

https://www.livebinders.com/b/3716893?tabid=16770db7-6ffa-e519-d14f-ee6c5a288a83

I really did not anticipate acoustics to matter, yet opening patterns, backing materials, and panel depths in metal ceilings tame echo while keeping crisp, contemporary lines.