The Armstrong Soundsoak Baffles do indeed work as described. Greatly reducing reverberation and improving sound quality in a high ceiling, exposed metal truss, library for an elementary school.
For this project we intentionally waited until the room was absolutely complete before installing the panels, in a manner similar to that shown in the above photograph. (Note: This is a stock photo from Armstrong. It is not the project we tested the product on.) The room contained all finishes including furniture as well as books on wood shelving.
The (12) 2’x4’ panels were then installed-removed-reinstalled numerous times in various configurations in order to “tune” the room to the desired result. Special audio broadcast equipment and microphones were used to aid in obtaining the optimum level. (Technical analysis beyond my pay grade.)
The result was not only a technical and quantifiable improvement, but was a distinctly obvious improvement in sound quality to the ear. The library was more quiet, air conditioning systems were not as apparent, and the space didn’t contain the ‘echo’ that was present prior to the installation of the sound baffles.
The panels come in a variety of fabric colors to choose from. They are lightweight (about 10 lbs) and fortunately they install as easy as hanging a banner or piece of art.
In my book, the Armstrong Soundsoak Baffles get a firm – Two Thumbs Up.