If you have been recently to the Melbourne Shrine of Remembrance you will realise it is a very quiet place and a place that has significant meaning to the people of Australia. Over the years there have been significant changes made to the Shrine, including the major addition of the underground area.
One thing you may see if you go through the public area is the Red Ceiling. This incorporates Custom made Acoustic Ceiling panels. 
The Ceiling Panels are Serenity Acoustic Panels by Sontext incorporating a sound absorbing membrane and a tegular edge to match the painted grid.
Serenity Acoustic Panels were chosen by ARM Architects of Melbourne and after many alterations to the standard product a custom made Acoustic Ceiling Panel was created which can be seen in the photograph.
By including the Serenity Acoustic Ceiling Panel the quiet feeling of the Shrine is maintained in the Public area.
Please have someone phone me about your acoustic panels. We have a need to redcue the echo effect in a large Boardroom, thanks.