Upto now, I only know one acoustic tile products available here. The Ecophon products available at Ecogreen company.
Anymore info about acoustic tile dealers in the philippines.
Also delers of sound diffuesrs, like RPG products.
There's a topic on the book Architectural Acoustics by Madan Mehta, which gives a details on a quadratic diffussers, which is very helpful in A LEDE type control room studios. And also formulas how to make it.
Is there somebody had try to make it? Making a self made and good diffussers. Aside from convex and irregularly shaped hard materials.
Good day.
